摘要
实际的线性调频连续波(LFMCW)雷达的发射信号都有两个非理想的参数—扫频非线性和功率起伏,它们将使LFMCW雷达的实际测距精度和距离分辨力下降。本文根据LFMCW雷达回波功率谱的特性,从应用的角度分析了扫频功率起伏与其测距精度和距离分辨力的关系,为LFMCW雷达振荡器的选择提供一个理论依据。
The transmitting signal of Linear Frequency Modulation Continuous Wave (LFMCW) radar has two nonideal parameters: sweep nonlinearity and power undulation. They make the practical range precision and range resolution of LFMCW radar decrease. This paper analyses the effects of the power undulation on the range precision and range resolution according to the echo power spectrum of LFMCW radar, and gives theoretical bases for choosing its oscillator.
