AHU

通过正弦波和三角波的比较产生SPWM波形(Through the comparison of sine wave and triangle wave produces SPWM waveform)

This is a nice add on for LaTEx can be used to make presentations

Abstract—Selection combining cascaded with maximum-ratio combining (SC/MRC), which is particularly useful when site diversity is available, combined with low-density parity-check (LDPC) codes is able to combat the effects of fading. The biterror rate (BER) expressions of uncoded SC/MRC and SC/MRC with LDPC codes over an independent and identically distributed Rayleigh-fading channel are derived based on the Gaussian approximation approach. These expressions are also applicable to the selection combining and maximum-ratio combining as special cases. The derived expressions are in good agreement with simulation results and approach the density evolution (DE) thresholds. These expressions are able to achieve a significant reduction in computational time with a reasonable accuracy for analyzing the BER performance as compared to simulations and DE.

富士门禁的二次开发包，含485和tcp两种协议；(Fuji access control two development kits, including 485 and TCP two protocols;)

该源程序是合泰46R47单片机做的热水器源程序。(The source code is Hetai 46R47 Singlechip source water heaters do.)

STM8 BLDC_CONTROL_STM8S903K3 STM8无刷电机程序(BLDC_CONTROL_STM8S903K3 BLDC STM8)

说明：  很详细的原厂HT1621规格书(Ht1621 specification)

IIC总线协议芯片CH452驱动代码，配合数码管和按键，适合快速移植。(IIC bus agreement CH452 chip driver code, with digital tube and buttons, suitable for rapid transplantation. )

MSP430单片机C语言应用程序设计实例精讲(MSP430 microcontroller C language application design example succinctly)

stm32f103ze spi驱动带超时机制 片内flash驱动(stm32f103ze spi drive On chip flash drive)