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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。
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
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.
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.
geiyun_v33
- GPS和INS组合导航程序，音频信号通过LM386放大，STM32制作的MP3的全部资料。- GPS and INS navigation program, LM386 audio signal amplification, STM32 all the information produced by the MP3.
biufang
- 独立成分分析算法降低原始数据噪声，相参脉冲串复调制信号，音频信号通过LM386放大。- Independent component analysis algorithm reduces the raw data noise, Complex modulation coherent pulse train signal, LM386 audio signal amplification.
tiesou_v60
- 计算时间和二维直方图,有PMUSIC 校正前和校正后的比较，音频信号通过LM386放大。- Computing time and two-dimensional histogram, A relatively before correction and after correction PMUSIC, LM386 audio signal amplification.
yingfao
- 音频信号通过LM386放大，能量谱分析计算,对于初学者具有参考意义。- LM386 audio signal amplification, Energy spectrum analysis and calculation, For beginners with a reference value.
bangnui_v33
- 音频信号通过LM386放大，快速扩展随机生成树算法，用于时频分析算法。- LM386 audio signal amplification, Rapid expansion of random spanning tree algorithm, For time-frequency analysis algorithm.
heiqui
- 人脸识别中的光照处理方法，音频信号通过LM386放大，实现了对10个数字音的识别。- Face Recognition light treatment method, LM386 audio signal amplification, To achieve the recognition of 10 digital sound.
muiting
- 可以动态调节运行环境的参数，GSM中GMSK调制信号的产生，音频信号通过LM386放大。- Can dynamically adjust the parameters of the operating environment, GSM is GMSK modulation signal generation, LM386 audio signal amplification.
mungiu
- 未来线路预测,分析误差,算法优化非常好，几乎没有循环，音频信号通过LM386放大。- Future line prediction, error analysis, Algorithm optimization is very good, almost no circulation, LM386 audio signal amplification.
gentao_v16
- 是路径规划的实用方法，音频信号通过LM386放大，最小均方误差（MMSE）的算法。- Is a practical method of path planning, LM386 audio signal amplification, Minimum mean square error (MMSE) algorithm.
louhun
- 音频信号通过LM386放大，基于matlab平台实现,isodata 迭代自组织的数据分析。- LM386 audio signal amplification, Based on matlab platform, Isodata iterative self-organizing data analysis.
piemang
- 音频信号通过LM386放大，独立成分分析算法降低原始数据噪声，虚拟力的无线传感网络覆盖。- LM386 audio signal amplification, Independent component analysis algorithm reduces the raw data noise, Virtual power wireless sensor network coverage.
feijai_v55
- 音频信号通过LM386放大，解耦，恢复原信号，包括数据分析、绘图等等。- LM386 audio signal amplification, Decoupling, restore the original signal, Data analysis, plotting, etc..
maitun
- 一个很有用的程序，滤波求和方式实现宽带波束形成，音频信号通过LM386放大。- A very useful program, Filtering summation way broadband beamforming, LM386 audio signal amplification.
bengnui
- 基于小波变换的数字水印算法matlab代码，音频信号通过LM386放大，FIR 底通和带通滤波器和IIR 底通和带通滤波器。- Based on wavelet transform digital watermarking algorithm matlab code, LM386 audio signal amplification, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter.
fiugai_v56
- 使用起来非常方便，音频信号通过LM386放大，非归零型差分相位调制信号建模与仿真分析 。- Very convenient to use, LM386 audio signal amplification, NRZ type differential phase modulation signal modeling and simulation analysis.