论文部分内容阅读
根据选取的导频序列具有的强相关性对AWGN信道信噪比进行估计,通过选择合适的虚警概率和漏检概率来确定相对判决门限,从而确保了信号检测联合信噪比估计算法的有效性。对信号检测联合信噪比估计算法进行了理论分析和仿真,仿真结果表明:该算法在信道信噪比较低(-15dB)时具有很高的估计精度。
The AWGN channel signal to noise ratio is estimated based on the strong correlation of selected pilot sequences, and the relative decision threshold is determined by selecting the appropriate false alarm probability and missed detection probability, so as to ensure the validity of the joint SNR estimation algorithm Sex. The algorithm of joint SNR estimation of signal detection is analyzed and simulated. The simulation results show that the proposed algorithm has high estimation accuracy when channel SNR is low (-15dB).