基于DSP离散频率编码雷达信号的实现

摘要

Discrete frequency-coding sequence set is a kind of orthogonal coding waveform set with good auto-correlation and cross-correlation properties, which can achieve stronger capability in target detection, tracking and recognition.Solving a NP-hard problem is needed when designing such signals.What's more, considering the speed limit of digital dignal processor (DSP) and the real-time need of signal generation, a simple and efficient algorithm named local search algorithm is adopted.The TMS320F28335 from Texas Instrument Company and DAC7724 from Bristol Babcock Company are used to complete the algorithm and waveform output.%离散频率编码序列集合是一种具有良好自相关和互相关性的正交编码波形序列集合,其信号可以提升网状多雷达系统的目标搜索能力、追踪与识别能力.为了设计这种信号,需要求解NP-难的组合优化问题,且考虑到DSP的速度限制和信号产生的实时性要求,采取简单有效的局部搜索算法,并利用TI公司的TMS320F28335和BB公司的DAC7724完成目标算法和波形输出,得到了符合要求的波形.