Distinguishing concrete-way from grassplot with MMW band

The engineering design of a millimeter-wave (MMW) active/passive (A/P) combinative detector have previously been presented in Z. L. Xiao et al., and in this paper, application in concrete-way detecting with the MMW A/P detector is discussed. The structure of the system is introduced, the implementation of distance measuring module and the target identification signal processing part are analyzed in detail, and the high tower experiment and some experimental results are presented