In modern AC servo systems, vector control principles and space voltage vector pulse width modulation (SVPWM) technology enable AC motors to obtain Performance is comparable to DC motors. Permanent magnet synchronous electricity
In modern AC servo systems, vector control principles and space voltage vector pulse width modulation (SVPWM) technology enable AC motors to obtain Performance is comparable to DC motors. Permanent magnet synchronous electricity (2021-03-14, PDF, 526KB, 下载0次)
英飞凌 XMC1300系列cortex Mo单片机中文技术手册。
Infineon XMC1300 user manual (2020-09-08, PDF, 10123KB, 下载4次)
全志H6数据手册
Allwinner h6 v200是一款高成本的四核ott box处理器，这是日益增长的家庭娱乐产品的一部分，这些产品提供高性能的处理和高度的功能集成。
Allwinner H6 User Manual (2020-08-07, PDF, 11189KB, 下载8次)
针对单矢量水听器多重信号分类(Multiple Signal Classification，MUSIC)算法在低信噪比条件下，存在谱峰宽度变宽、估计精度变低等性能恶化的问题，提出一种基于单矢量水听器空间谱增强的改进 MUSIC 算法。
A modified Multiple Signal Classification (MUSIC) algorithm of single acoustic vector hydrophone is proposed by enhancing space spectrum under low SNR condition. (2020-04-13, PDF, 800KB, 下载1次)
信源估计常用的方法盖氏圆方法，用到声矢量阵中
The method commonly used in source estimation is the Gaussian circle method, which is used in the acoustic vector array (2020-04-13, PDF, 285KB, 下载2次)
dsPIC33FJ32GP204数据手册
dsPIC33FJ32GP204 datasheet (2020-02-12, PDF, 2063KB, 下载0次)
昆腾微的dsp音频处理芯片。有混音、多段均衡 、闪避、音量控制、防啸叫、移频、等
Ktmicro DSP audio processing chip (2019-05-10, PDF, 2015KB, 下载31次)
复合储能装置在煤矿应急电源中的应用，为了满足煤炭行业及企业对供电可靠性的要求，提出将由蓄电池和超级电容组合成的复合储能单元应用于煤矿应急电源中。
Application of Compound Energy Storage Device in Emergency Power Supply of Coal Mine (2019-04-12, PDF, 214KB, 下载2次)
STM32中文技术手册，用于查看STM32系列芯片内部寄存器使用功能说明
STM32 Chinese Technical Manual (2019-01-01, PDF, 10904KB, 下载2次)
PIC32 图形LCD显示技术介绍文档,
PIC32 GFX LCD display introduction (2018-08-17, PDF, 2010KB, 下载0次)
this paper introduces how to design radar and radar theory
this paper introduces how to design radar and radar theory (2018-04-07, PDF, 8825KB, 下载6次)
基于小波多分辨率分析的思想，提出一种降低混沌信号噪声的方法。首先对一个混沌时间序列进行小波分析，得到信
号在各个尺度上的不同特性;再对各个高频细节信号进行二次小波去噪;最后对二次小波去噪后的信号进行线性叠加，达到
提取真实信号的目的
Based on the idea of wavelet multiresolution analysis, a method to reduce the noise of chaotic signal is proposed. First, the wavelet analysis of a chaotic time series is carried out to get the letter.
The different characteristics of the signal on different scales, and then the two high-frequency wavelet denoising is done for each high-frequency detail signal. Finally, the two wavelet denoising signal is superimposed linearly. (2017-12-11, PDF, 279KB, 下载6次)
在采集信号时,如果传感器没有前置放大,
则传感器输出的压电信号的信噪比会比较低。本文利用小波域软阈值滤波方法对未采用前置放大而采样得到的
信号进行小波分析,大幅度地提高了信号的信噪比,提取的目标信号位置与理论位置吻合的很好。这表明可以通
过小波分析方法很好地改善热超声信号的信噪比,从而降低对微波致热超声成像采集系统中前置放大器的要求
When human tissue is irradiated by microwave pulses, there is thermo2acoustic signal due to heat
expansion. Considering the safety, the power of microwave pulse can not be too large. Therefore, the amp litude of the
induced thermo2acoustic signal is very low, and the SNR ( signal to noise ratio) of the p iezoelectric signal from ultrasonic
transducer is very low without p reamp lifier in the transducer. In this paper, a soft2thresholding filteringmethod was used to
p rocess the thermo2acoustic signal which was acquired from an electromagnetic induced thermo2acoustic tomography
( EM ITA) system without p re2amp lifier in the transducer. Itwas shown that the signal’s SNR was greatly imp roved, and
locations of the reconstructed signal pulses agreea verywellwith the theoretical results. This research indicates thatwavelet
analysismethod can greatly imp rove the SNR of the EM ITA signal and may decrease the requirement to p reamp lifier (2010-03-15, PDF, 408KB, 下载12次)
fm1702sl的pdf文件，供开发人员参考.
fm1702sl_cn.pdf,fm1702sl_cn.pdf (2009-12-29, PDF, 1867KB, 下载23次)
J1939协议中文版. 对CAN总线编写有参考价值
J1939 Chinese version. (2009-10-14, PDF, 4810KB, 下载324次)
详细的I2C总线协议中文版 包括协议的具体内容和应用
I2C Protocol Chinese edition ,including the Protocol in detail and the applications (2009-07-16, PDF, 764KB, 下载1次)
笙科RF芯片A7102数据手册中文版，
可工作于315MHZ,433MHZ,868MHZ,915MHZ波段
AMIC RF chip data A7102 manual Chinese version, can work in 315MHZ, 433MHZ, 868MHZ, 915MHZ band (2008-12-10, PDF, 464KB, 下载188次)
這是一篇有關於向量信號分析儀(VSA)的文章
on Vector Signal Analyzer (VSA) of the article (2006-09-04, PDF, 466KB, 下载9次)
MVP8000 系列企业级VoIP 产品 应用方案
MVP8000 serial enterprise level VoIP product application plan
(2004-07-03, PDF, 262KB, 下载41次)