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Journal articles on the topic 'Direct Digital Synthesis'

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Published: 4 June 2021
Last updated: 25 July 2025

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1

Dontabhaktuni, Jayakumar, and Pulla Rao2 B. Satyanarayana B. "Design of RF Transmitter with high speed for Magnetic Resonance Imaging (MRI) using 8-Core DDS System of FPGA." International Journal of Engineering Research & Science 4, no. 1 (2018): 71–77. https://doi.org/10.5281/zenodo.1187390.

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<em>An overall goal of the research is to investigate a new approach to the MRI RF Transmitter. Design a high-speed MRI RF transmitter. The goal is to explore the potential of a built-in DDS core of an FPGA chip to generate a dual-channel output at a 1 GHz sampling frequency of each. This output will be processed by a dual-input DAC chip for a total of 2 GHz sampling rate. The entire system should be able to generate the output signal ranging from 100 kHz to 750MHz. To accomplish this goal, it is necessary to study and to investigate the structures of these features to see how they could be ut
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2

Calbaza, D. E., and Y. Savaria. "A direct digital period synthesis circuit." IEEE Journal of Solid-State Circuits 37, no. 8 (2002): 1039–45. http://dx.doi.org/10.1109/jssc.2002.800923.

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3

Manivannan, K., and C. Eswaran. "Direct synthesis approach for GIC digital filters." Electronics Letters 24, no. 10 (1988): 624–26. http://dx.doi.org/10.1049/el:19880423.

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4

McEwan, Alistair, and Steve Collins. "Direct Digital-Frequency Synthesis by Analog Interpolation." IEEE Transactions on Circuits and Systems II: Express Briefs 53, no. 11 (2006): 1294–98. http://dx.doi.org/10.1109/tcsii.2006.882349.

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5

Machacek, Zdenek, Martin Gabzdyl, and Viktor Michna. "Direct digital synthesis based - function generator with digital signal modulations." IFAC Proceedings Volumes 43, no. 24 (2010): 189–94. http://dx.doi.org/10.3182/20101006-2-pl-4019.00036.

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6

Tao Wang. "Signal Generator Based on Direct Digital Synthesis Techniques." International Journal of Digital Content Technology and its Applications 5, no. 8 (2011): 24–30. http://dx.doi.org/10.4156/jdcta.vol5.issue8.4.

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7

Sneka, C., D. Anusha, P. Sivasankari, K. Sivasankari, and C. Thiruvengadam. "Realization of Direct Digital Synthesis in Cordic Algorithm." International Journal of Advanced Scientific Research and Development (IJASRD) 6, no. 4 (2019): 01. http://dx.doi.org/10.26836/ijasrd/2019/v6/i4/60401.

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8

Seldowitz, Michael A., Jan P. Allebach, and Donald W. Sweeney. "Synthesis of digital holograms by direct binary search." Applied Optics 26, no. 14 (1987): 2788. http://dx.doi.org/10.1364/ao.26.002788.

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9

Chren, W. A. "RNS-based enhancements for direct digital frequency synthesis." IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing 42, no. 8 (1995): 516–24. http://dx.doi.org/10.1109/82.404073.

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10

Calbaza, D. E., and Y. Savaria. "Direct digital frequency synthesis of low-jitter clocks." IEEE Journal of Solid-State Circuits 36, no. 3 (2001): 570–72. http://dx.doi.org/10.1109/4.910498.

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11

Li, Zhi-Yuan, Hai-Feng Yu, Xin-Sheng Tan, Shi-Ping Zhao, and Yang Yu. "Manipulation of superconducting qubit with direct digital synthesis." Chinese Physics B 28, no. 9 (2019): 098505. http://dx.doi.org/10.1088/1674-1056/ab37f9.

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12

Zavrel, Robert J. "HDTV and NTSC Transmission Using Direct Digital Synthesis." SMPTE Journal 100, no. 12 (1991): 961–62. http://dx.doi.org/10.5594/j02380.

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13

Dayu Yang, F. F. Dai, Weining Ni, Shi Yin, and R. C. Jaeger. "Delta-Sigma Modulation for Direct Digital Frequency Synthesis." IEEE Transactions on Very Large Scale Integration (VLSI) Systems 17, no. 6 (2009): 793–802. http://dx.doi.org/10.1109/tvlsi.2008.2008458.

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14

Romashov, Vladimir V., Kirill A. Yakimenko, Andrey N. Doktorov, and Lubov V. Romashova. "Low-noise hybrid frequency synthesizers based on direct digital and direct analog synthesis." Izmeritel`naya Tekhnika, no. 4 (April 2020): 51–56. http://dx.doi.org/10.32446/0368-1025it.2020-4-51-56.

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The research of the possibility of using hybrid frequency synthesizers based on direct digital and direct analog methods of frequency synthesis as heterodynes of modern spectrum analyzers constructed according to the superheterodyne scheme is presented. The main advantages of such synthesizers over traditionally used heterodyne schemes based on direct digital and indirect frequency synthesis methods are shown. The requirements for the heterodynes of the first mixing stages of spectrum analyzers are presented. A block diagram of a wideband heterodyne generating a frequency range from 4000 MHz t
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15

Vidya, Sagar Potharaju. "FPGA IMPLEMENTATION OF DIRECT DIGITAL SYNTHESIZERUSING VHDL." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 4, no. 11 (2017): 140–50. https://doi.org/10.5281/zenodo.1067984.

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Signal generators are heavy and large in size and are limited to particular set of analog wave forms,creation of arbitrary wave forms are not possible. The available Digital signal generators nowadays are incapable of creating all type of waveforms and more ever they are not reconfigurable. In this paper I am proposing an efficient method called Direct Digital Synthesis (DDS) to realize all the hardware parts of signal generator called Direct Digital Synthesizer in FPGA using VHSIC Hardware Description Language (VHDL). DDS has many advantages over its analog counterpart and improved phase nois
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16

., Prajakta J. Katkar. "DIRECT DIGITAL SYNTHESIS BASED CORDIC ALGORITHM: A NOVEL APPROACH TOWARDS DIGITAL MODULATIONS." International Journal of Research in Engineering and Technology 04, no. 07 (2015): 48–53. http://dx.doi.org/10.15623/ijret.2015.0407008.

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17

Lekic, Predrag, and Aca Micic. "Direct synthesis of the digital FIR full-band differentiators." Facta universitatis - series: Electronics and Energetics 15, no. 3 (2002): 465–79. http://dx.doi.org/10.2298/fuee0203465l.

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In this paper, two methods for designing digital full-band FIR differentiators are presented. First of them, named Immediate, represents the efficient and general method for brusque designing the first and higher degree digital full-band FIR differentiators of even and odd order, with simultaneous approximation of the prescribed magnitude and group delay responses, using originally modified eigenfilter method. The proposed method presents an approach for the FIR differentiator frequency response approximation directly in the complex, and not in the real domain. The second method, named Interme
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18

Venkateswarlu, T. "Direct canonic synthesis of all-pass digital filter structures." IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications 46, no. 12 (1999): 1495–97. http://dx.doi.org/10.1109/81.809553.

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19

Mohan, P. V. A. "On RNS-based enhancements for direct digital frequency synthesis." IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing 48, no. 10 (2001): 988–90. http://dx.doi.org/10.1109/82.974788.

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20

Yuan, Cheng, Huachao Wang, Guoying Sun, Yi Chen, Guoqiao Ren, and Zisheng Li. "An improved direct digital synthesis technique for railway application." IET Conference Proceedings 2024, no. 20 (2024): 1–4. https://doi.org/10.1049/icp.2024.4072.

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21

Zou, Luyao, Roman A. Motiyenko, Laurent Margulès, and Eugen A. Alekseev. "Millimeter-wave emission spectrometer based on direct digital synthesis." Review of Scientific Instruments 91, no. 6 (2020): 063104. http://dx.doi.org/10.1063/5.0004461.

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22

Bellaouar, A., M. S. O'brecht, A. M. Fahim, and M. I. Elmasry. "Low-power direct digital frequency synthesis for wireless communications." IEEE Journal of Solid-State Circuits 35, no. 3 (2000): 385–90. http://dx.doi.org/10.1109/4.826821.

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23

Sternhagen, J. D., K. Mitzner, E. Berkenpas, M. Karlgaard, C. E. Wold, and D. W. Galipeau. "A direct digital synthesis system for acoustic wave sensors." IEEE Sensors Journal 2, no. 4 (2002): 288–93. http://dx.doi.org/10.1109/jsen.2002.803744.

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24

van Rooyen, G. J., and J. G. Lourens. "A quadrature baseband approach to direct digital FM synthesis." IEEE Transactions on Broadcasting 46, no. 3 (2000): 227–30. http://dx.doi.org/10.1109/11.892160.

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25

Daishido, Tsuneaki, Kuniyuki Asuma, Kazuhiko Nishibori, et al. "Direct Imaging Digital Lens for Transient Radio Source Survey." International Astronomical Union Colloquium 131 (1991): 86–89. http://dx.doi.org/10.1017/s0252921100013105.

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AbstractFFT based 2D Dygital Lens is discussed comparing with Fourier synthesis. The sensitivity of constructing Large Array will be 50mJy. Precise manipuration of the radiation field is possible in it.
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26

Romashov, V. V., K. A. Yakimenko, A. N. Doktorov, and L. V. Romashova. "Low-Noise Hybrid Frequency Synthesizers Based on Direct Digital and Direct Analog Synthesis." Measurement Techniques 63, no. 4 (2020): 308–13. http://dx.doi.org/10.1007/s11018-020-01788-y.

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27

Koukourlis, C. S., P. H. Houlis, and J. N. Sahalos. "A general purpose differential digital modulator implementation incorporating a direct digital synthesis method." IEEE Transactions on Broadcasting 39, no. 4 (1993): 383–89. http://dx.doi.org/10.1109/11.259598.

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28

Samad, S. A. "DIRECT SYNTHESIS OF LADDER WAVE DIGITAL FILTERS WITH TUNABLE PARAMETERS." ASEAN Journal on Science and Technology for Development 20, no. 1 (2017): 1–18. http://dx.doi.org/10.29037/ajstd.364.

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This paper proposes a method for the synthesis of ladder wave digital filters (WDFs) directly from the digital domain. This method avoids the need for the synthesis of analog reference filters conventionally required in WDF design. This direct method allows for the determination of the WDF coefficients from the digital domain transfer function. This is similar to conventional infinite impulse response (IIR) filter coefficient determination but the WDF will give a more efficient realization. Due to the WDFs power complementary properties, a first-order ladder WDF can simultaneously realize both
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29

Pazoev, A. L. "Main limitations in the synthesis of digital holograms of 3D images." Interexpo GEO-Siberia 8, no. 1 (2022): 117–25. http://dx.doi.org/10.33764/2618-981x-2022-8-1-117-125.

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Problems of digital synthesis of holograms of 3D objects are discussed. The problem of using fast Fourier transform (FFT) in the synthesis of a remote object is numerically shown. A method for implementing a direct numerical Fresnel transformation based on the use of spatial symmetries of the Fresnel transformation kernel as the main element of calculations is offered. Its promising possibilities are discussed. An example of calculating a hologram of a 3D image and its restoration is given. At the moment, a program for the synthesis of holograms by direct integral transformation without the us
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30

Polikarovskykh, O. I. "DIRECT DIGITAL SYNTHESIZER IN A NEW MATHEMATICAL BASIS." Proceedings of the O.S. Popov ОNAT 1, no. 2 (2020): 100–110. http://dx.doi.org/10.33243/2518-7139-2020-1-2-100-110.

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The principles of the construction and operation of a digital synthesizer for direct frequency synthesis with acceleration of computational operations by using a residual class system (RNS) are considered. The specifics of the implementation of the operation of direct and inverse transformations from the positional number system to the number system of the residual classes are described. A mathematical model of a synthesizer with a phase accumulator in the system of residual classes is considered. The ways of designing a digital synthesizer of direct synthesis with a phase accumulator in the R
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31

Li, Dawei, Daiting Shi, Ermeng Hu, et al. "A frequency standard via spectrum analysis and direct digital synthesis." Applied Physics Express 7, no. 11 (2014): 112203. http://dx.doi.org/10.7567/apex.7.112203.

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32

Zhihe Zhou and G. S. La Rue. "A 12-Bit Nonlinear DAC for Direct Digital Frequency Synthesis." IEEE Transactions on Circuits and Systems I: Regular Papers 55, no. 9 (2008): 2459–68. http://dx.doi.org/10.1109/tcsi.2008.920981.

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33

Chang Yong Kang and E. E. Swartzlander. "Digit-pipelined direct digital frequency synthesis based on differential CORDIC." IEEE Transactions on Circuits and Systems I: Regular Papers 53, no. 5 (2006): 1035–44. http://dx.doi.org/10.1109/tcsi.2005.862183.

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34

HULA, I. V., L. V. KARPOVA, V. M. MELNYCHUK, and O. I. POLIKAROVSKYKH. "METHOD OF REDUCING PERIODIC COMPONENT NOISES DIGITAL SYNTHESIZERS DIRECT SYNTHESIS." HERALD of Khmelnytskyi national university 271, no. 2 (2019): 150–59. http://dx.doi.org/10.31891/2307-5732-2019-271-2-150-159.

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35

Finneran, Ian A., Daniel B. Holland, P. Brandon Carroll, and Geoffrey A. Blake. "A direct digital synthesis chirped pulse Fourier transform microwave spectrometer." Review of Scientific Instruments 84, no. 8 (2013): 083104. http://dx.doi.org/10.1063/1.4818137.

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36

Rybin, Yu K., and T. A. Petlina. "Basic metrological properties of electronic oscillators with direct digital synthesis." Measurement 98 (February 2017): 243–49. http://dx.doi.org/10.1016/j.measurement.2016.12.009.

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37

Nieznanski, J. "An alternative approach to the ROM-less direct digital synthesis." IEEE Journal of Solid-State Circuits 33, no. 1 (1998): 169–70. http://dx.doi.org/10.1109/4.654951.

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38

Verteshev, Sergei, and Vladimir Konevtsov. "DIRECT DIGITAL CONTROL IN A COMPLEX OF SOFTWARE DESIGN OF DIGITAL CONTROL SYSTEMS." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 3 (June 15, 2017): 332. http://dx.doi.org/10.17770/etr2017vol3.2534.

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This article provides the functionality of creating direct digital control devices in the computer-aided design of digital automatic control systems (CAD of digital ACS), in a complex of software design of digital control systems (SDSDC complex) for automated process control systems. Technical tools are defined by the international standard IEC 61131-1: 2003 (Part 1: General data). The possibility of implementing SDSDC complex in direct digital control, single-cycle and multi-cycle ladder diagrams, identification of objects of management and synthesis of digital controllers in comparison with
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39

Verteshev, Sergei, and Vladimir Konevtsov. "DIRECT DIGITAL CONTROL IN A COMPLEX OF SOFTWARE DESIGN OF DIGITAL CONTROL SYSTEMS." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 3 (June 15, 2017): 337. http://dx.doi.org/10.17770/etr2017vol3.2536.

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This article provides the functionality of creating direct digital control devices in the computer-aided design of digital automatic control systems (CAD of digital ACS), in a complex of software design of digital control systems (SDSDC complex) for automated process control systems. Technical tools are defined by the international standard IEC 61131-1: 2003 (Part 1: General data). The possibility of implementing SDSDC complex in direct digital control, single-cycle and multi-cycle ladder diagrams, identification of objects of management and synthesis of digital controllers in comparison with
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40

Lee, Sung-Won, and In-Cheol Park. "Quadrature direct digital frequency synthesis using fine-grain angle rotation technique." Electronics Letters 39, no. 17 (2003): 1235. http://dx.doi.org/10.1049/el:20030795.

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41

Engel, Gil, Daniel Fague, and Assaf Toledano. "RF digital-to-analog converters enable direct synthesis of communications signals." IEEE Communications Magazine 50, no. 10 (2012): 108–16. http://dx.doi.org/10.1109/mcom.2012.6316784.

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42

Jensen, H. T., and I. Galton. "A low-complexity dynamic element matching DAC for direct digital synthesis." IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing 45, no. 1 (1998): 13–27. http://dx.doi.org/10.1109/82.659453.

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43

Langlois, J. M. P., and D. Al-Khalili. "Phase to sinusoid amplitude conversion techniques for direct digital frequency synthesis." IEE Proceedings - Circuits, Devices and Systems 151, no. 6 (2004): 519. http://dx.doi.org/10.1049/ip-cds:20040500.

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44

Ekroot, C. G., and S. I. Long. "A GaAs 4-bit adder-accumulator circuit for direct digital synthesis." IEEE Journal of Solid-State Circuits 23, no. 2 (1988): 573–80. http://dx.doi.org/10.1109/4.1024.

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45

Nie, Jing, Xiaofeng Meng, and Ning Li. "Quartz crystal sensor using direct digital synthesis for dew point measurement." Measurement 117 (March 2018): 73–79. http://dx.doi.org/10.1016/j.measurement.2017.12.008.

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46

De Carli, A., and A. Kozlovic. "A New Approach to the Direct Synthesis of a Digital Controller." IFAC Proceedings Volumes 22, no. 18 (1989): 171–76. http://dx.doi.org/10.1016/s1474-6670(17)52839-6.

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47

Suchenek, M., and T. Starecki. "Programmable pulse generator based on programmable logic and direct digital synthesis." Review of Scientific Instruments 83, no. 12 (2012): 124704. http://dx.doi.org/10.1063/1.4771921.

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48

Cordesses, L. "Direct digital synthesis: a tool for periodic wave generation (part 1)." IEEE Signal Processing Magazine 21, no. 4 (2004): 50–54. http://dx.doi.org/10.1109/msp.2004.1311140.

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49

Gula, I. V., O. I. Polikarovskykh, K. I. Horiashchenko, I. V. Karpova, and V. M. Melnychuk. "Measurements of Periodic Signals Phase Shifts with Application of Direct Digital Synthesis." Devices and Methods of Measurements 10, no. 2 (2019): 169–77. http://dx.doi.org/10.21122/2220-9506-2019-10-2-169-177.

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The development of new methods and high-bit instruments for measuring phase shifts of high-frequency periodic signals with high speed for radar and radionavigation tasks is an actual task. The purpose of this work is to create a new phase shift meter for high-frequency periodic signals based on the double-matching method using direct digital frequency synthesis.On the basis of the proposed mathematical model of phase shift measurements of periodic signals by the method of double coincidence using the statistical accumulation of pulse coincidences, a functional diagram of a digital phase shift
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50

Kushwaha, Monika, and U. M. Gokhale. "Design and Simulation of Direct Digital Synthesizer for Wireless Applications." Journal of Advance Research in Electrical & Electronics Engineering (ISSN: 2208-2395) 2, no. 3 (2015): 15–20. http://dx.doi.org/10.53555/nneee.v2i3.213.

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Direct Digital Synthesis is an improved method of producing analog waveforms where the generation is done completely in the digital sphere. In this paper, a design is presented for a Direct Digital Synthesizer (DDS) which generates multiple waveforms. The architecture is based on a 32 bit phase accumulator and a look-up table (LUT) as phase to amplitude converter. This design will be simulated in Xilinx. This DDS will offer qualities like fast switching, good frequency resolution and good stability. This DDS can become highly portable if it is designed on a Field Programmable Gate Array (FPGA)
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