Research on Instantaneous Fading Model of Stratospheric Communication Channel Based on Random Walk

摘要

In order to improve the transmission quality of stratospheric communication network, reliability evaluation is required. A random walk-based instantaneous fading estimation and channel equalization method for stratospheric communication channel is proposed, a transmission channel equalization control and characteristic analysis model for stratospheric communication network transmission is constructed, a fractional interval equalization method is adopted for channel equalization adjustment for stratospheric communication network transmission, and an output channel fading characteristic estimation model for stratospheric communication network transmission is established. The output stability of stratospheric communication network transmission is adjusted by adopting a matching filter detection method, the filtering detection of stratospheric communication network transmission is carried out by adopting an output channel fading random walk detection method, adaptive equalization scheduling processing of stratospheric communication network output channels is carried out by combining the random walk detection method, baud equalization control of stratospheric communication network is carried out by adopting a random spread spectrum method, distortion suppression of stratospheric communication network transmission channels is carried out by adopting carrier modulation and ambiguity detection methods, and instantaneous fading estimation and channel equalization of stratospheric communication channels are realized by combining large data sampling and spatial equalization allocation methods. The simulation results show that the accuracy of instantaneous fading estimation and channel equalization for stratospheric communication channel using this method is better, the channel equalization for stratospheric communication is better, and the output error rate is lower.