Volume 37 Issue 2
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Article Navigation >  Journal of University of Electronic Science and Technology of China  > 2008  >  37(2): 210-213

HU Shi-bing, WANG Xue-gang, SI Qiang, TANG Bin. Errors Analysis of the Digital Generation System for Ultra Wide-Band LFM Signals[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(2): 210-213.
Citation: HU Shi-bing, WANG Xue-gang, SI Qiang, TANG Bin. Errors Analysis of the Digital Generation System for Ultra Wide-Band LFM Signals[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(2): 210-213.
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Errors Analysis of the Digital Generation System for Ultra Wide-Band LFM Signals

  • 1.

    School of Electronic Engineering,University of Electronic Seience and Technology of China Chengdu 610054

  • Received Date: 2006-03-15
  • Rev Recd Date: 2006-11-21
  • Publish Date: 2008-04-15
  • Three main digital methods for linear frequency modulated (LFM) waveform generation are compared and analyzed. On the basis of the waveform storage method, a digital generation system scheme for ultra wide-band LFM pulse compression signals is proposed in this paper. The performances of the digital system is investigated in detail including the effects of amplitude quantization bits and the sampling frequency at digital base-band, the non-idealization of the quadrature modulator, spurs involved in the frequency multiplier, and the distortion of intermediate frequency LFM signals in time domain on the performance of output signals. The results are finally proved by computer simulations and therefore provide important theoretical bases and experiential references for parameters selection, performance evaluation, and performance optimization of ultra wide-band systems.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Errors Analysis of the Digital Generation System for Ultra Wide-Band LFM Signals

  • 1. School of Electronic Engineering,University of Electronic Seience and Technology of China Chengdu 610054
  • Received Date: 2006-03-15
  • Rev Recd Date: 2006-11-21
  • Publish Date: 2008-04-15

Abstract: Three main digital methods for linear frequency modulated (LFM) waveform generation are compared and analyzed. On the basis of the waveform storage method, a digital generation system scheme for ultra wide-band LFM pulse compression signals is proposed in this paper. The performances of the digital system is investigated in detail including the effects of amplitude quantization bits and the sampling frequency at digital base-band, the non-idealization of the quadrature modulator, spurs involved in the frequency multiplier, and the distortion of intermediate frequency LFM signals in time domain on the performance of output signals. The results are finally proved by computer simulations and therefore provide important theoretical bases and experiential references for parameters selection, performance evaluation, and performance optimization of ultra wide-band systems.

HU Shi-bing, WANG Xue-gang, SI Qiang, TANG Bin. Errors Analysis of the Digital Generation System for Ultra Wide-Band LFM Signals[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(2): 210-213.
Citation: HU Shi-bing, WANG Xue-gang, SI Qiang, TANG Bin. Errors Analysis of the Digital Generation System for Ultra Wide-Band LFM Signals[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(2): 210-213.
shu

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