CAJ | 학술논문

为确保无线通信的可靠性，提出一种有效的基于盲源分离算法的无线通信系统抗干扰算法。针对扩频通信系统进行建模设计，算法使用Hessian矩阵判定得到的有用解是否为最值点，作为信噪分离过程稳定性的判定统计点，作权系数的修订，对扩频通信系统中的盲源分离算法进行了建模，改善扩频通信系统受到复杂电磁环境干扰性能。仿真实验表明通过新的盲源分离抗干扰算法，整个扩频通信系统的信噪比以及抗干扰性能得到了很大的提高，与传统小波处理以及统计信噪分离算法相比，整体信噪比平均提高了4 dB，展示了算法在扩频通信中具有较好的抗干扰性能，在无线通信抗干扰系统设计中具有较好的实际应用价值。
위학보무선통신적가고성，제출일충유효적기우맹원분리산법적무선통신계통항간우산법。침대확빈통신계통진행건모설계，산법사용Hessian구진판정득도적유용해시부위최치점，작위신조분리과정은정성적판정통계점，작권계수적수정，대확빈통신계통중적맹원분리산법진행료건모，개선확빈통신계통수도복잡전자배경간우성능。방진실험표명통과신적맹원분리항간우산법，정개확빈통신계통적신조비이급항간우성능득도료흔대적제고，여전통소파처리이급통계신조분리산법상비，정체신조비평균제고료4 dB，전시료산법재확빈통신중구유교호적항간우성능，재무선통신항간우계통설계중구유교호적실제응용개치。
In order to improve the effect and relibility of wireless communication, an improved anti-interference algorithm based on blind resouce serperation method was proposed. The spread spectrum communication system was modelined and designed, the algorith used the Hessian matrix to etermine whether the value point was the useful solution, and the optimal solution was used as the stability statistics dermination point for modifying the weight coefficient. The improved algorithm and model for the blind source separation algorithm in spread spectrum communication system was designed and the perfor-mance of anti-interference was improved. Simulation result shows that new method can improve the anti-interference per-formance and improve the SNR of all the system greatly. The overall SNR can improve 4dB comparing to the traditional method. It shows that prospective application value in wirless communication system design with good anti-interference performance.