基于BSC9132平台的宽带信号信噪比估计算法研究

SNR Estimation Algorithms of Broadband Signal based on BSC9132

研究宽带信号信噪比算法,在Freescale多核DSP平台BSC9132上进行工程实现,结合平台特性,优化设计了一种适用于工程实现的信噪比算法。BSC9132是由Freescale公司推出的高性能、低功耗的高密度集成器件,可以实现无线收发传输信号基带处理中的所有功能。仿真结果表明,对于基于BSC9132平台的自适应无线宽带通信传输系统,精确的信噪比估计值可以为自适应通信速率、调制方式和编码方式调整提供可靠的参考依据,从而最大限度地保证通信畅通和信道利用率。

The SNR estimation algorithms for broadband signal is studied and implemented on the Freescale multi-core DSP platform BSC9132.Based on the characteristics of the platform,a SNR algorithm for engineering implementation is optimized.BSC9132is a high-performance,low-power and high-density integrated device launched by Freescale.It can achieve all functions of signal baseband processing in wireless transmission.The simulation results indicate that,for the adaptive wireless broadband communication transmission system based on BSC9132platform,the accurate SNR estimation value can provide reliable reference for adaptive communication rate,modulation-mode and coding-mode adjustment,thus guaranteeing to the maximum extent the unimpeded communication and channel utilization.