4-Channel baseband real-time spectrum analyzer for crosstalk measurement

A synchronous multi-channel baseband real time spectrum analyzer is proposed in this paper, which can be used for acquisition and analysis of multi-port network signals. The 60MSps simultaneously-sampling and real-time spectrum analysis are realized for 4 parallel channels, which provides a maximum analysis bandwidth of 30MHz with adjustable frequency resolution. All digital analysis algorithms are implemented on a single FPGA chip. The approach of this paper provide an experimental tool for studying crosstalk of cables and wire harness.