chapter6

MODBUS是工业领域通信协议的业界标准。这是周立功MODBUS的源码，适合应用和学习，需要的朋友可以看看。(MODBUS communication protocol is the industry standard in the industry. This is Zhou Ligong MODBUS source code, suitable for application and study, need friends can look at.)

实现使用music算法进行频率估计，并绘图(Achieve the use of music algorithm for frequency estimation, and graphics)

说明：  实现了3GPP 38.901中基础的信道(basic realization of 3GPP 38.901 channel model)

说明：  简单的时延波束形成算法，实现简单，并画出指向性图(Simple delay beamforming algorithm)

Lte advanced downlink harq scheduling

This thesis presents simulation data on array operation in wideband communication systems. It is shown that array structures with closer inter-element spacing outperform structures with much larger inter-element spacing. It is also shown that circular structures outperform linear structures. This performance dierence between the classications of arrays is due largely to the circular array s ability to handle high levels of interference. Even though a diversity combining scheme (MRC) was used in the simulator, the arrays provided interference rejection capabilities due to the closely spaced antenna elements.

恒模算法(CMA)是实际中应用最广的一种盲均衡算法,这里主要时提出了改进的lc-cma算法的源程序代码(Constant modulus algorithm (CMA) is one of the most widely used blind equalization algorithms in practice. In this paper, the source code of the improved lc-cma algorithm is proposed.)

说明：  粒子群优化算法工具箱，包含完整的参数优化子程序(Particle swarm optimization algorithm toolbox, including a complete parameter optimization subroutine)

恒频恒压(CVCF)逆变电源的输出电压波形质量是衡量其性能的重要指标之一。文章采用一种重复控制和双闭环控制相结合的电压波形控制策略，以重复控制器提高逆变电源输出电压的稳态精度，减小总谐波畸变率；以双闭环控制器达到较快的动态响应速度。该方案在一台采用TMS320F240 DSP控制芯片的50 Hz三相PWM逆变器上得到验证。(Constant voltage constant frequency (CVCF) Inverter output voltage waveform quality is an important measure of its performance indicators. Paper using a repetitive control and the combination of double closed loop control voltage waveform control strategy to improve the repetitive controller output voltage inverter steady-state accuracy and reduce total harmonic distortion to achieve a faster dual-loop controller dynamic response speed. The program uses TMS320F240 DSP in a 50 Hz phase control chip PWM inverter has been to verify.)

Wireless Sensor Network (WSN) Platforms