有干扰的卫星信道的错误编码

C. F. Bradshaw, G.S. Herman
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引用次数: 0

摘要

本文讨论了在非平稳、非高斯噪声环境下,对存在相邻和共信道干扰的卫星信道进行改进纠错编码的研究结果。所研究的代码是由卷积码和里德-所罗门码串联而成的。在高斯信道中的测试结果显示了卷积解码器的几何误差长度概率质量函数。在干涉通道中,测试结果显示出双峰误差-长度质量函数。结果表明,几何函数和双峰函数的突发误差量分别与接收机和接收机锁相环中的噪声功率密度之比成正比。
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An error coding for satellite channels with interference
The authors discuss the results of an investigation into improved error correction coding for satellite channels experiencing adjacent and cochannel interference, which constitute a nonstationary, non-Gaussian noise environment. The codes under study are those achieved by concatenation of a convolutional code and a Reed-Solomon code. Test results in the Gaussian channel showed geometrical error-length probability mass functions from a convolutional decoder. In the interference channel, test results showed a bimodal error-length mass function. It is shown that the amount of burst errors in either the geometrical or bimodal functions is proportional to the ratio of noise power density in the receiver and the receiver's phase-lock loop, respectively.<>
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