多天线GPS接收机分集算法研究

由于多径衰落严重影响了GPS信号传输的质量，抗多径衰落技术的研究一直倍受关注。分集技术用来减小衰落的影响，在不增加发射机功率或信道带宽的情况下提高系统的可靠性。并以空间分集为例，讨论在多天线GPS接收机中应用最大信噪比准则，进行信号选择性合并，提高合并处理增益，进而改善GPS接收机的性能。

Study of Divide-collecting Algorithm on Multi-antenna GPS Receiver

Because multi-path decline seriously influences quality of GPS signal transmission, study of decline resisting has been paid close attention all the time. The technology of divide-collecing is used for reducing decline, which improves system dependability while do not increase transmitter power or channel width. Taking space divide-collecting for an example, the paper discusses that it uses greatest SNR criterion in Multi-antennae GPS receiving set, to alternative amalgamate signal, improving the amalgamating gain, and thus improving the performance of GPS receiver.