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AREPS_jianjie
- 发表在国际权威会议(IEEE主办)上的美国海军开发的AREPS软件的介绍-AREPS is the U.S. Navy’s designated software tool** for radar performance simulation and analysis. For well over 20 years it has been used to provide accurate propagation predictions in realistic refractive enviro
ZM3102N
- Z-wave芯片 ZM3102N 数据数据手册-ZM3102N data Data Sheet
2
- 差分方法求解波动方程的MATLAB程序代码-Difference Method for the Wave Equation MATLAB program
MSP430-Using-PWM-Timer-B-as-a-DAC
- This application report describes how to simultaneously create a sine wave, a ramp, and a dc level with pulse-width modulated (PWM) signals from Timer_B on the MSP430 ultralow power family of microcontrollers. PWM signals are often used to crea
Nonlinear_Fiber_Optics_Chinese_edition
- 光纤是20世纪的重大发明之一,其导光性能臻于完美,很难想像还会有更好的替代者。本书是光学、光子学和光通信领域的重要译著,分原理篇和应用篇两部分。原理篇包括光传输方程、群速度色散、自相位调制、调制不稳定性和光孤子、偏振效应、交叉相位调制、受激散射和光参量过程等内容,科学归纳为非线性光纤光学,侧重于基本概念和原理。应用篇内容包括光纤光栅、光纤耦合器,各种光纤干涉仪、光纤放大器和光纤激光器,光脉冲压缩技术,以及有关光纤通信系统和孤子波系统中的传输问题,体现了非线性光纤光学在光波技术、光通信领域的应用。
avr16-step_motor-control
- 本设计采用ATEML公司的mega16 单片机对步进电机进行控制,通过IO口输出的具有时序的方波作为步进电机的控制信号,信号经过芯片L298N驱动步进电机;同时,用键盘来对电机的状态进行控制。-This design uses the company ATEML S mega16 SCM ATEML stepper motor control, through the IO port output with the timing of the square wave as a stepper m
WaterWave
- 一个Android OS下实现的水波效果-Achieved under an Android OS Wave Effect! !
ADUC841PWM
- ADUC841 用方式2产生PWM波。附带串口通讯,74HC244扩展P1口,PWM波,AD转换的调试报告。和程序,正常应用。-ADUC841 generate PWM wave with mode 2. With serial communication, 74HC244 extended P1 port, PWM wave, AD conversion of the debug report. And procedures for normal application.
eg-fft
- fft1.用Matlab产生正弦波,矩形波,以及白噪声信号,并显示各自时域波形图 2.进行FFT变换,显示各自频谱图,其中采样率,频率、数据长度自选 3.做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱 4.用IFFT傅立叶反变换恢复信号,并显示恢复的正弦信号时域波形图-fft1. Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and displa
rayleigh-distribution-matlab
- In wireless communications, fading is deviation of the attenuation that a carrier-modulated telecommunication signal experiences over certain propagation media. The fading may vary with time, geographical position and/or radio frequency, and is often
Adam4586
- 基于超声波检测的倒车雷达设计 其原理为:在超声波发射器两端输入10个40kHz脉冲串,脉冲电信号经过超声波内部振子,振荡出机械波,通过空气,介质传播到被测面,由被测面反射,超声波接收器接收-Based on ultrasonic testing of reversing radar design The principle is: In the ultrasonic transmitter at both ends of input 10 40kHz pulse train, pulse u
A_Synthetic_Evaluation_fo_Antijamming_Ability_of_t
- 摘要:实战条件下如何评价短波跳频通信系统的抗干扰性能是构建短波跳频通信系统的重要环rr-}J。由于不 能得到精确的指标评价值,采川组合赋权法给出了系统抗干扰性能的评价算法已经不能适川。给出了一种模糊综 合评价方法,该方法有如下优点:为避兔专家赋指标权值的卞观随意性,将德尔菲(Delphi)法和层次分析法(AHP)相结合来确定指标权值 为了便于专家较准确地作出评判,给出了指标评价等级,并利川模糊评价法给出指标评价矩 阵,最后得到评价结果。评价实例表明了该方法的有效性。 -Abst
zhangyong_jun-shi-duan-bo-tong-xi-kang-gan-rao-xin
- 摘 要:建立了几个军事短波通信系统仿真模型,并简要叙述了军事短波通信系统中跳频、扩频的干扰方程。文章给出了仿真物理结构图以及功能模块图,也给出了军事短波通信抗干扰性能仿真评估的指标,提出了利用云模型及云不确定性推理对仿真结果进行评估,并给出了干扰和无干扰条件下军事短波通信的抗干扰性能评估结果。-Abstract: A number of military HF communications system simulation model, and a brief descr iption of
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- 以MAX038 为基础而研制的宽频带函数波形产生器, 它可以产生2~ 2×107Hz 频率范围的正 弦波、三角波、锯齿波和矩形波以及与它们同步的TTL 脉冲信号。-MAX038 basis to the development of broadband waveform generator function, it can produce 2 ~ 2 × 107Hz frequency range of sine wave, triangle wave, sawtooth and recta
PWM
- 利用定时器控制产生占空比可变的 PWM 波 按K1,PWM值增加,则占空比减小,LED 灯渐暗。 按K2,PWM值减小,则占空比增加,LED 灯渐亮。 当PWM值增加到最大值或减小到最小值时,蜂鸣器将报警。-Have a timer to control the use of variable duty cycle PWM wave by K1, PWM values increase, then decrease the duty cycle, LED lights dimmin
caiyangSPWm
- 采用不对称规则采样法生成三相SPWM波的开环调速控制程序-Asymmetric rules used to generate three-phase sampling SPWM wave of open-loop speed control procedures
sin
- C语言的正弦调幅波程序,可以根据此程序熟悉ccs绘图与滑块的使用方法-C language sine wave amplitude modulation process can be familiar with this procedure ccs graphics and use the slider
Algorithm_for_detection_QRS
- 孕产期胎儿心跳QRS波的提取,采用相关算法实现,比较有意义-Maternal fetal heartbeat QRS wave extraction, using the relevant algorithm, more meaningful
diannaoshizhongchengxu
- 通过控制单片机内部的定时器来产生不同频率的方波,驱动喇叭发出不同音调的音乐,再利用延迟来控制发音时间的长短。把乐谱转化成相应的定时常数就可以从发音设备中演奏出悦耳动听的音乐。对于不同型号的单片机只需要相应的改变一下地址即可。-Single-chip by controlling the internal timer to generate a square wave of different frequencies, different tone horn-driven music, re-us
OFDMTurbo
- 在短波跳频通信中OFDM与Turbo码技术的研究-In the short-wave frequency-hopping communication OFDM with Turbo Code technology