DSK_6713

Multiple input multiple output techniques combined with orthogonal frequency division multiplexing (MIMO-OFDM) provide a promising approach for wireless systems. However, a serious drawback of the OFDM system is the high peak-toaverage power ratio (PAPR), which may severely affect the power efficiency of RF power amplifiers. In this paper, we propose a simple method to reduce the PAPR of MIMO-OFDM signals based on the use of unused subcarriers. Instead of processing the signals at each transmitter separately, a peak cancelling signal is generated at one antenna and is then applied to all the others with only simple modifications. Simulation has shown that a minimum 2 dB reduction in PAPR can be achieved for all transmit signals using this approach. As the signal processing is nearly all done at a single transmitter, repetition of the operations at each transmitter is avoided, and therefore the overall cost of the system can be significantly reduced.

本程序是以dsp28335为基础的，对ECAP 模块的程序设计(This procedure is based dsp28335 based on ECAP Programming Module)

两个直流电机双闭环DSP控制程序！ 直流单极性双闭环可逆控制程序+直流双极性双闭环可逆控制程序(Two pairs of closed-loop DC motor control procedures DSP! DC unipolar double-loop control procedures reversible+ DC reversible bipolar double-loop control procedures)

analysis of statcom for voltage regulation

handspring的springboard开发参考模型 (The Diagnostic Module is a hardware and software reference design kit for hardware and software developers to use as a reference when developing Springboard modules. This diagnostic module provides a detailed example of how to properly interface with the Springboard expansion slot and how to develop appropriate Springboard application software.)

Registre universale Permit operaţ ii de deplasare la stâ nga ş i la dreapta, î ncă rcare paralelă , citire serială sau paralelă a datelor. De menţ ionat că aceleaş i operaţ ii se pot realiza ş i cu registrul 7495 prezentat anterior, dar cu conexiuni externe pentru deplasarea la stâ nga.

this is a paper for pcf beam splitter!

基于F28035的EQEP模块用于捕获外部脉冲的程序(The EQEP based F28035 module for capturing external pulse program)

1.本示例演示PWM波形输出以控制电机，通过配置，28035的PWM1A和PWM1B将输出频率为10KHZ的方波； //2.28035有多达7个通道14路PWM波输出，在本实验中，我们使用的是PWM1的A路和B路， // 它们分别是GPIO0和GPIO1。(DSP theory and motor control applications)

DSP存储器管理(MEM)模块应用例程，在存储段SEG0分配一块内存，然后将其释放，并进行状态显示。(DSP Memory Management (MEM) module application routines, allocate a block of memory in the storage section SEG0, then released, and the status display.)