The statistic model of air-ground radio communication channel is characterized by the multipath fading, Dopplerpowerspectrum and delay power spectrum.
空地通信信道的主要统计特性包括多径衰落特性、多普勒功率谱和时延功率谱。
2
It uses a conventional constant false-alarm-rate(CFAR) detection procedure but the thresholding scheme is based on regression analysis of powerspectrum values along range and Doppler cells.