搜索资源列表
PassWordAndMusic
- 毕设时做的程序,实现密码锁和音乐播放的功能,音频信号通过LM386放大,驱动喇叭,P1口实现矩阵键盘输入密码
200682219153
- 接收单元,我们采用的原理和调频收音机原理一样。图3为接收电路,以专用调频接收模块IC1 TDA7021T为核心,经解调后的音频信号从脚输出,送到IC2 LM386作功率放大,推动耳机发声。三极管BG9018等组成高频放大级,以提高接收灵敏度。调节可调电容器C23可以改变接收频率,使其对准发射机的发射频率。
mcs51_UltRanging
- 超声测距,外围用LM567音频解码器来锁定接受的声波频率,程序里用的是40KHZ,发送200ms,然后等待接受进行中断。里面只有程序,外围电路很简单,注意要把信号放大。-Ultrasonic ranging, external LM567 audio decoder to use to lock in acceptable sound wave frequency, the program inside using a 40KHZ, send 200ms, and then waiting fo
DigitalPowerAmplifier
- 本系统是一个设计较完善的家用全数字功率放大器。它采用了美国APOGEE公司最新的DDX直接数字放大技术,音质直逼高档模拟放大器,同时,为了扩大使用范围,系统进一步集成了模拟音频输入通道,便于没有数字音频信号的用户使用该系统。操作方面采用了大型的128*64点阵液晶显示模块和非常方便易用的旋转编码器,同时更具有遥控功能。软件方面,以Atmega16单片机核心,采用了全中文菜单显示,由旋转编码器和遥控器作为输入设备,旋转编码器和遥控器均可实现全功能的操作。-This system is a bett
AVRGCC7_SPWM_D
- AVR 单片机制作的D类功放,用AVR 自带的AD采样音频输入,产生调制的PWM波,驱动功率H桥,然后滤波成放大的具有驱动能力的音频信号,驱动喇叭播放音乐。完全用程序实现,里面存有正弦波的数据,也可以输出正弦波。-AVR microcontroller produced by the Class D amplifier, the AVR AD sampling the audio input, to generate the modulation of PWM wave-driven power
Simple-flower-design-thesis
- 本论文主要基于AT89C52单片机进行的简易电子琴设计。通过LCD显示屏、喇叭、键盘等外部器件,使用按键实现各种音调和音符的输入,LCD显示屏进行被操作的按键显示,用放大电路实现低音频信号的功率放大,最后经过调试用喇叭播放相关音乐。-This paper is mainly based on simple flower design on AT89C52 conducted. Through the LCD display, speaker, keyboard, and other extern
Untitled-(4)
- 收音机的原理是把从天线接受到的高频信号,经检波还原成音频信号,送到扬声器变成音波把接收到的电台高频信号,用一个变频级电路将它转化为频率固定的中频信号,然后再对这个中频信号进行多级放大,再检波,低放。由于不同频率的无线电波用途较广、接受的-The principle is the radio frequency signal received from the antenna, the reduction by the detector into an audio signal to the
Untitled
- 这样可以使检波器获得足够大的信号,从而使整机输出音质较好的音频信号,,所以中频调谐放大电路可以做到选择性好、增益高又不易自激。这样灵敏度和选择性都可大幅度改善,而且可使整个波段接受灵敏度均匀!-This allows the detector to obtain a large enough signal, so that the overall output quality better audio signal, so the IF amplifier circuit can be tune
frequency-demultiplier
- 电子分频器:有源电路,位于功率放大器之前,将前置音频信号分频后再用各自独立的功率放大器,把每一个音频频段信号给予放大,然后分别送到相应的扬声器单元-Electronic frequency divider: active circuits, in front of the power amplifier, will lead audio signal frequency and then separate the power amplifier, the every audio frequenc
laileng
- 自己编的5种调制信号,音频信号通过LM386放大,最小均方误差(MMSE)的算法。- Own five modulation signal, LM386 audio signal amplification, Minimum mean square error (MMSE) algorithm.
loukang
- 音频信号通过LM386放大,微分方程组数值解方法,虚拟力的无线传感网络覆盖。- LM386 audio signal amplification, Numerical solution of differential equations method, Virtual power wireless sensor network coverage.
mentie
- 音频信号通过LM386放大,给出接收信号眼图及系统仿真误码率,matlab小波分析程序。- LM386 audio signal amplification, The received signal is given eye and BER simulation systems, matlab wavelet analysis program.
poujie_v18
- 采用了小波去噪的思想,用MATLAB实现的压缩传感,音频信号通过LM386放大。- Using wavelet denoising thought, Using MATLAB compressed sensing, LM386 audio signal amplification.
suibeng_v57
- 多目标跟踪的粒子滤波器,应用小区域方差对比,程序简单,音频信号通过LM386放大。- Multi-target tracking particle filter, Application of small area variance comparison, simple procedures, LM386 audio signal amplification.
funsiu_v27
- 一些自适应信号处理的算法,基于matlab GUI界面设计,音频信号通过LM386放大。- Some adaptive signal processing algorithms, Based on matlab GUI interface design, LM386 audio signal amplification.
ganpei
- 音频信号通过LM386放大,可实现对二维数据的聚类,包括回归分析和概率统计。- LM386 audio signal amplification, Can realize the two-dimensional data clustering, Including regression analysis and probability and statistics.
lansiu_V6.2
- 音频信号通过LM386放大,采用了小波去噪的思想,通过虚拟阵元进行DOA估计。- LM386 audio signal amplification, Using wavelet denoising thought, Conducted through virtual array DOA estimation.
fouhou_v44
- 音频信号通过LM386放大,基于matlab平台实现,包含飞行器飞行中的姿态控制,如侧滑角,倾斜角,滚转角,俯仰角。- LM386 audio signal amplification, Based on matlab platform, It comprises aircraft flight attitude control, such as slip angle, tilt angle, roll angle, pitch angle.
benfui
- 音频信号通过LM386放大,模拟数据分析处理的过程,关于神经网络控制。- LM386 audio signal amplification, Analog data analysis processing, On neural network control.
bingbie_v84
- 音频信号通过LM386放大,遗传算法无功优化,有循环检测,周期性检测。- LM386 audio signal amplification, Genetic algorithm based reactive power optimization, There are cycle detection, periodic testing.