coherence bandwidth characterization in an urban microcell at 62.4GHz

基于梯度物理的压缩感知（CS）和恢复算法。对 CS形式进行了总结。介绍了物理意义的连贯性和测量。以及基于梯度的恢复算法及其几何解释。-The physics of compressive sensing (CS) and the gradient-based recovery algorithms are presented. First,the di® erent forms for CS are summarized. Second, the physical meanings of

在OFDM系统 中，宽带信道被分割相互重叠的窄带子信道，如果各子信道 的带宽比信道的相干带宽要小，那么信号传输就有可能在无 频率选择性衰落或者平坦衰落的信道进行。-In OFDM system The wideband channel is divided into narrowband sub-overlapping, if each sub- The bandwidth is less than the coherence bandwidth of the channe