vectors16

说明：  pi/4-dqpsk,可实现FPGA与电脑自发自收(pi/4-dqpsk,It can realize the self receiving of computer and FPGA)

无线信道建模一直以来都很复杂，而且不同场景下的模型差异较大，这是一本专门讲解无线信道建模方法的书籍配套的matlab例程(Channel modeling has been very complex, and the model under different scenarios are quite different, which is the one devoted to channel modeling method books matching matlab routines)

百度手机地图 实例集合，应用程序编程源码，很好的参考资料。(Set Baidu mobile phone map example, application programming source code, a good reference.)

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.

说明：  通过C++语言实现了OFDM系统的仿真，包裹调制、子载波映射、循环前缀、频域时域映射，解调等等，代码简单易懂(The simulation of OFDM system is realized by C + +, including package modulation, subcarrier mapping, cyclic prefix, frequency domain time domain mapping, demodulation and so on. The code is simple and easy to understand)

说明：  基于simulink，对二进制基带信号使用bpsk调制解调，进行仿真与性能分析.(the simulink of bpsk)

kd树，matlab源码 kd树，matlab源码(kdtree wiritten in matlab)

完成Zero-forcing,MMSE的均衡器以及带feedback的据衡器 比较各自的误差率的matlab代码(Complete Zero-forcing, MMSE equalizer with feedback of data Weighing respective error rate matlab code)

这是 Okumura 和Hata模型的编码。(This is the coding of Okumura and Hata models.)

华为3G模块_EM770W_EM660资料和wince驱动(Huawei 3G module _ EM770W_EM660 data and WinCE driver)