摘要
文章运用全概率分析和多维分布相结合的方法,在同时考虑热噪声和部分频带高斯噪声干扰的前提下,对多跳/符号的非线性合并分集接收系统的误比特率性能进行了精确分析。文章在最后借助Labview对系统在最坏部分频带干扰下的性能,以及时间分集的抗干扰性能进行了仿真,仿真结果表明在一定信干比的范围内时间分集能带来系统性能的改善。
The arithmetic in combination of whole-probability and multidimensional distribution is adoptted in this paper. The exact probability of error analyses are performed for M-ary Frequency-Shift Keying system employing L hop/bit Frequency-Hopping communication with diversity ,in which both partial-band Gaussian nosie and the system＇ s thermal nosie are included. Depending on the tool of Labview , both the performance of FH/MFSK system under the optimum partial-band nosie jammer and the improvement of time diversity are simulated. The results show that a diversity gain can be achieved in certain scope of signal-to-jammer power ratio.
出处
《通信技术》
2007年第12期7-9,共3页
Communications Technology
