| Abstract: | In an analog TV based passive radar, the mismatched filter for only visual signals will produce a high SNR loss. In this paper, a method for the mismatched filter for both visual and audio signals is proposed. First, the chosen frequency of the visual and audio signal is synthesized in a consecutive range of frequency, and then the mismatched filter for the synthesized signal is applied. This method can utilize all the power of analog TV. What's more, according to simulation results, it can be found that when the same peak sidelobe ratio is acquired, a much lower SNR loss can be acquired by the proposed mismatched filter based on visual and audio signals than the one based only on visual signals. |
