entropy

说明：  传输ofdm数据，采用了简单的多径信道，实现水下通信，整体程序还可以，可以参考参考(In order to transmit OFDM data, a simple multi-path channel is used to realize underwater communication. The overall program can also be used for reference)

实现多项式的加法和减法 并且实现一个多项式的运算(Realize polynomial addition and subtraction and the realization of a polynomial operator)

说明：  power allocation in NOMA

串口通信初学者的好用例程,自己学习的时候用过，还可以。(serial port communication sample)

说明：  信号处理综合建模仿真 1、 楼体模型的建立。 2、 实际环境干扰（如树木遮挡、环境噪声、系统内部噪声等）的加入。 3、 信号的反射与穿透衰减的考虑。 4、 天线扫描方式的确定。 5、 空间-SNR三维图像的绘制。(Integrated Modeling and Simulation of Signal Processing)

Multiple input multiple output techniques combined with orthogonal frequency division multiplexing (MIMO-OFDM) provide a promising approach for wireless systems. However, a serious drawback of the OFDM system is the high peak-toaverage power ratio (PAPR), which may severely affect the power efficiency of RF power amplifiers. In this paper, we propose a simple method to reduce the PAPR of MIMO-OFDM signals based on the use of unused subcarriers. Instead of processing the signals at each transmitter separately, a peak cancelling signal is generated at one antenna and is then applied to all the others with only simple modifications. Simulation has shown that a minimum 2 dB reduction in PAPR can be achieved for all transmit signals using this approach. As the signal processing is nearly all done at a single transmitter, repetition of the operations at each transmitter is avoided, and therefore the overall cost of the system can be significantly reduced.

这是蓝牙4.0的规范说明文档，对于了解4.0协议有所帮助。(This is the Bluetooth 4.0 specification document helpful for understanding the 4.0 protocol.)

说明：  利用粒子滤波器对目标进行状态的检测估计,并且展示了滤波后与实际值的误差曲线图(Detection and estimation of target state by using particle filter)

说明：  通过labview实现通信信道仿真中的信道估计以及时域均衡，注意这个是以及完整实现了信道的搭建，通过添加时域均衡以及信道估计实现最终的仿真(The channel estimation and time-domain equalization in communication channel simulation are realized by labview. Note that this is to build the channel completely. The final simulation is achieved by adding time-domain equalization and channel estimation.)

说明：  polar 代码，使用matlab进行仿真，实现了polar代码基本功能，并提供polar基本原理说明(matlab polar simulation)