中文说明： ldpc码的编解码实现，信号维数的估计，基于多相结构的信道化接收机，虚拟力的无线传感网络覆盖，最小均方误差等算法的MSE的计算,用平面波展开法计算二维声子晶体带隙。
English Description：
LDPC code codec implementation, dimension of signal estimation, polyphase structure of channelized receiver based on, virtual force of wireless sensor network coverage, minimum mean square error algorithm MSE calculation, using the plane wave expansion method calculation of two-dimensional phononic crystals bandgap.