Precision delay signal generation theory and technology in the test of navigation receiver

High precision satellite navigation signal simulation has an important and significance value for military and civilian satellite navigation user equipment tests. The paper researched multi-channel analog RF signals of satellite navigation precision delay theory and key technology. Paper proposed high resolution multi-delay filter delays methods based on FPGA / DSP software radio processing platform. The method has lower compute complexity of the implementation method, finally paper introduced the test and engineering applications.