摘要
卫星数传系统中的基带成型滤波器存在非理想组合情况。文章在基于QPSK调制解调条件下,采用Matlab仿真工具对卫星数传系统中非理想组合的基带成型滤波器对系统误码性能的影响进行了仿真分析。结果表明,滤波器的非理想组合情况对系统误码性能有一定影响。如果选取适当的滤波器参数,此影响可以非常小,在实际工程中是可以使用的。
There is non-ideal case of baseband shaping filter in the satellite data transmission system. This paper firstly analyzes the relationship between the non-ideal case of baseband shaping filter and the system BER performance under the QPSK modulation, then stimulates the above analysis under the matlab platform. The simulation results indicate that the relation between the non-ideal case of baseband shaping filter and the system BER performance is presence in a certain extent. If the parameter of filter is chosen felicitously, the effect is slight and the filter can be used in practice.
出处
《空间电子技术》
2009年第1期44-47,78,共5页
Space Electronic Technology
基金
国家重点实验室基金项目(9140C5303020601)
