Cadence Software-based Pseudo-code Fuse And Circuit Design

In the future war, Wireless fuze working in an execrable condition. Because of the strong performances of counter-reconnaissance , capability of range find and speed measure, pseudo-noise (PN) code fuze became an important direction of the development of wireless fuze.In this dissertation, PN code phase modulation fuze is studied. This paper analyzed PN code and its corresponding PN code phase modulation fuze system, discussed the PN code's waveform , autocorrelation function and power spectrum, proposed the working principle of the PN code phase modulation fuze. use the Cierto Signal Processing Work System to design and simulate the system of PN code phase modulation fuze, confirmed the correctness of the design scheme. Then use Analog Workbench Mixed Signal to analyze the circuit diagram of the PN code phase modulation fuze .The simulation result indicates that the circuit diagrams are applicable. The task of the design about the PN code, modem, filter, delayed sequence and the correlation detection are finished. The main contributions are as followings:(1) The constitution of PN code phase modulation fuze.the paper introduced the constitution of PN code phase modulation fuze proposed the working principle of the PN code phase modulation fuze and discoursed the design method of the whole system.(2) How to use the Analog Workbench Mixed Signal to simulate the circuit are studied. the paper mainly introduced how to design circuit diagram.(3) The circuit diagram of the PN code phase modulation are given. the paper introduced the circuit diagram of the PN code phase modulation including the PN code, modem, filter, delayed sequence and the correlation detection. The simulation result are given.