In this paper, the features of signalambiguity function for FM, TV and DTV are listed and analyzed. The key techniques of passive radar system based on DTV signal are studied and analyzed.
The radar system structure and signal model are firstly developed, then the detection range and signalambiguity are analyzed, and finally computer simulations are used to evaluate the performances.
According to a new type of mixed pulse compression signal, this paper discusses the mathematical expression, the way of processing and the expression of the ambiguity function.