iir

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

dspace catlog for understanding

基于Backstepping的船舶航行自适应鲁棒非线性控制器设计(Design of Backsteping based adaptive robust nonlinear controller of ship course.)

MH 4010-2000 空中交通管制二次监视雷达设备技术规范，用以参考的资料(CAAC ISO)

云模型在AHP中的应用，1-9重要度比较，云模型的倒数标度(Application of cloud model in AHP, comparison of 1-9 importance degree, reciprocal scale of cloud model)

说明：  EXPERIMENT CODE FOR ROOT LOCUS TECHNIQUE

用matlab实现边缘细化的算法及原理，同时还有一个简单的例子帮助理解(With the edge of matlab implementation of the algorithm and the principle of refinement, at the same time have a simple example to help understand)

说明：  陀螺仪allan方差分析函数，计算角度随机游走，角速率随机游走，零偏不稳定性，并绘制allan方差图。(Gyro alllan variance analysis function, calculate angle random walk, angular rate random walk, zero offset instability, and draw allan variance diagram.)

给出了fhss调制解调的程序代码，通过编程描述了fhss的信号谱、功率谱(Given fhss code modulation and demodulation, by programming the signal described fhss spectrum, power spectrum)

cutting plane in matlab for special example.