IQerror

用IDE 4.7 开发的QNX Bluetooth Sample 源代码(QNX Bluetooth Sample)

移动无线信道是一个充满复杂干扰的信道 联合开发网 - pudn.com

异步socket通信C++，对socket基础协议进行封装处理(Asynchronous socket communication C++, on the basis of protocol encapsulation process socket)

principle_of_communication……matlab(principle_of_communication.matla)

说明：  相控阵雷达天线模型及仿真论文，非常好用，推荐(Phased array radar antenna model and simulation paper, very useful, recommended)

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.

ptz 云台控制软件, 内带C++ 源码(ptz PTZ control software, which brought C++ source)

说明：  网络芯片ch563读写u盘例程，例程完整，方便开发(The network chip ch563 reads and writes the U disk routine, which is complete and convenient for development)

HAF WHT 对应的MATLAB程序，用于机动目标检测，高阶模糊函数，MATLAB对应的程序(HAF WHT corresponding MATLAB program for maneuvering target detection, higher order fuzzy function, and MATLAB corresponding program)

说明：  polar code for matlab communication