Cluster-Head-Selection-using-a-Two-Level-Fuzzy-Lo

说明：  ：为了论证高斯最小频移键控(GMSK)信号在时域和频域的相互关系，分析了GMSK信 号调制原理和滤波器传递函数，建立了GMSK调制和解调模型。(: In order to demonstrate Gaussian Minimum Shift Keying (GMSK) signal in time domain and frequency domain, the relationship between the analysis of GMSK signal modulation principle and the filter transfer function established model for GMSK modulation and demodulation.)

本文介绍了基于DCT 的图像压缩编码技术, 并给出了具体的实现方法和步骤, 既保证具有较高的压缩比, 又保证了较好的图像 质量。(This paper introduces the coding of image based on DCT , therefore,shows the details of realization . It provides high compressibility and high quality.)

Butterworth filter design for digital 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.

通讯类：天线阵列自校正算法研究，天线阵列自校正算法研究，天线阵列自校正算法研究，天线阵列自校正算法研究(Communications: antenna array self-tuning algorithm, antenna array self-tuning algorithm, antenna array self-tuning algorithm, antenna array self-tuning algorithm)

There were downloaded documents wich can be very useful for those who exploring Wireless Sensor Networks. There given all the information and scripts to creat or build the model you need.

数字通信技术的收集与介绍 希望对大家有用( Communicate)

si4432射频芯片的中文开发资料，寄存器配置等(the si4432 radio frequency chip Chinese development information, register allocation)

Underwater optical wireless communication network

winner+项目信道校正数据，大尺度、小尺度、视距、非视距信道参数校正测量数据(winner+ project channel calibration data, large-scale small scales, sight, NLOS channel parameter calibration measurement data)