TYZmyLDA

mobility and that can readily coexist with HSPA and earlier networks. OFDM/OFDMA technology is introduced for the LTE downlink, supporting very high data rates of up to 300Mbps while Single-Carrier FDMA (SC-FDMA) is used in the uplink with data rates of 80Mbps possible. Additionally, LTE supports operation both in paired and unpaired spectrum (FDD and TDD) using channel bandwidths of approximately 1.4MHz up to 20MHz. The frequency domain scheduling can be done in OFDMA. One of the main challenges in OFDMA is the high peak-to-average radio of the transmitted signal, which requires linearity in the transmitter. The linear amplifiers have low efficiency therefore, OFDMA is not an optimized solution for a mobile uplink where the

计算时间序列的延迟时间，有例子，一看就明白啊！(The time series‘delay time is calculated , there is an example!)

matlab code for finite element Q4

合成孔径雷达(SAR)的点目标仿真(附件带代码程序)，适合初学者入门用，并解释了每一个语句的作用(Synthetic Aperture Radar (SAR) of the point target emulation (annex with code programs), a detailed description of the program and describes the role of the end of each program)

In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal frequency-division multiplexing (OFDM) block having a tile structure in the frequency domain is proposed to perform synchronization. Timing offsets are estimated using correlation-type algorithms. By inserting some null subcarriers in the proposed tile structure, we propose a computationally efficient subspace decomposition- based algorithm for CFO estimation. The issue of optimal tile length is studied both theoretically and through simulations. By judiciously designing the tile size of the pilot, the proposed algorithms are shown to have better performance, in terms of synchronization errors and bit error rate, than the time-division multiplexing-based training method and the computationally demanding space-alternating generalized expectation-maximization

说明：  利用matlab进行分支定界的算法(using Matlab for branch-and-bound algorithm)

计算区域能量的matlab函数，比较简便易懂，分别可以计算对角、水平、垂直方向的能量~(Matlab function to calculate the area of ​ ​ energy, relatively easy to understand, respectively, can calculate the diagonal, horizontal and vertical direction of the energy ~)

this program simulates 1D electromagnetic Maxwell equations "soft source", by using finite difference time domain method FDTD

基于最小风险的贝叶斯分类器，用于数字分类识别(Bayesian minimum risk classification for digital classification)

单基地多普勒补偿,可实现单基地的多普勒补偿(Doppler compensation of monostatic)