turbo_logmap

带SPI接口的独立以太网接口控制器，支持全双工和半双工模式，高速SPI接口(Independent Ethernet interface controller with SPI interface, support for full-duplex and half-duplex mode, high-speed SPI interface)

仿真均匀直线阵列、均匀平面阵列、均匀圆形阵列的方向图(Simulation of uniform linear array, uniform planar array and uniform circular array pattern)

含有已知信道下BPSK,QPSK,8PSK,16QAM的MLSE均衡，MMSE（频域）均衡SER,BER性能的对比。(SER,BER performance coparing of BPSK,QPSK.8PSK,16QAM modulation of block transmission in MMSE or MLSE equalizer on known channel.)

说明：  可实现，线性调频信号的产生，波形显示，波形解调和码字解调功能(Realizable, chirp signal generation, waveform display, waveform demodulation and codeword demodulation)

介绍常用的AT指令，包括gpsr初始化，发短信等(Commonly used in the AT commands, including the gpsr initialization, send text messages, etc.)

lfm信号及模糊度函数,等高线图，时间分辨力 频率分辨力(lfm signal and ambiguity function, contour map, time resolution, frequency resolution)

本人编写的一个根据五行八卦理论用来测试手机号吉凶的小程序,本程序只供大家消遣,且莫过于在意,呵呵()

DS-CDMA系统中的多用户盲检测算法在多径信道下的比较；对比LMSRLSKALMAN性能；代码属原创(DS-CDMA system of blind detection algorithm of many users in multipath channel of the comparison Contrast LMS RLS KALMAN performance Code of original )

ofdm 仿真 ofdm 仿真 ofdm 仿真 ofdm 仿真(ofdm simulation ofdm simulation ofdm simulation ofdm simulation of)

Abstract—In this paper, we study the joint estimation of inphase and quadrature-phase (I/Q) imbalance, carrier frequency offset (CFO), and channel response for multiple-input multipleoutput (MIMO) orthogonal frequency division multiplexing (OFDM) systems using training sequences. A new concept called channel residual energy (CRE) is introduced. We show that by minimizing the CRE, we can jointly estimate the I/Q imbalance and CFO without knowing the channel response. The proposed method needs only one OFDM block for training and the training symbols can be arbitrary. Moreover when the training block consists of two repeated sequences, a low complexity two-step approach is proposed to solve the joint estimation problem. Simulation results show that the mean-squared error (MSE) of the proposed method is close to the Cramer-Rao bound (CRB). Index Terms—MIMO OFDM, CFO, I/Q imbalance, channel estimation.