An Fmcw Detection System Rf Circuit Design And Analysis

FMCW radar, with its a very low probability of intercept(LPI)characteristic and greater advantage over mono-pulse radar in the rangeresolution, has always been an important topic in the research fields ofradar detection system and automobile range finder. The theoretic analysisand industrial implementation of sawtooth FMCW detection system form the majorcontent of thesis.In the first part of thesis, an overview on the basic characteristic ofFMCW single and principle of work in FMCW range acquisition is presented. Theambiguity function of sawtooth FMCW single is discussed. And difference offundamental frequencies between local oscillation signal and echoed signalis analyzed. Then the preferences and the range error of sawtooth FMCWdetection system are analyzed.Based on the above-mentioned analysis, thesis accomplishes thedevelopment of application technology in the RF circuit design and analysisof sawtooth FMCW detection system. Combining micro-strip theoretics, usingRE design software ADS, each part circuit of FMCW detection system is simulated.The fact remains that this software not only reduce the research anddevelopment (R&D) cost, but also easily realize the design goal. So it is akind of effectual tool in designing RF circuits.At the end of thesis, by debugging the circuit, systematic deviationbetween experiment results and simulated data is probed into. Some improvementmethods are proposed.