Study of ultra-wideband radar signals-generated technology using two-channel signal generator |
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Authors: | Wan Yonglun Lu Youxin Si Qiang Wang Xuegang Cao Guangping |
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Institution: | 1. Coll. of Electronic Engineering, Univ. of Electronic Science and Technology of China, Chengdu 610054, P.R. China 2. Southwest China Inst. of Electronic Technology, Chengdu 610036, P. R. China |
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Abstract: | Synthesis of ultra-wideband (UWB) linear frequency modulation radar signals is a very important technology for microwave imaging, target identification and detection of low radar-cross-section (RCS) targets. A new method of UWB radar signals generation with two-channel signal generator is presented. The realization structure is given; the principle and errors of signal synthesis are analyzed. At the same time, an automatic adjustment measure of signal phase is proposed because of phase discontinuity of waveform in this method. The simulation experiment and analysis results indicate that radar signals with large instantaneous bandwidth can be generated by means of this method on the condition that the high-speed digital devices are limited. |
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Keywords: | UWB DDS LFM two-channel signal generator pulse compression |
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