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tele3
- 模拟信号的数字化传输---增量调制系统 用SIMULINK建立简单增量调制系统的模型并进行 (3) 正弦信号 (4) 语音信号 的传输。 改变抽样频率和量化台阶大小,观察重建信号以及量化噪声信号的波形;对于语音信号主观评价声音质量的变化。 -Digitized analog signal transmission systems--- delta modulation delta modulation SIMULINK easy set up of the model s
example10
- :正弦波发生器例程,包括了直接数字频率合成(DDS)的原理以及如何应用CPLD产生频率可控频率的正弦信号。-: Sine wave generator routine, including a direct digital synthesizer (DDS), as well as the application of the principle of frequency control CPLD generated sinusoidal signal frequency.
EP1C3_12_10_PHAS
- 基于FPGA的移相式DDS正弦信号发生器的VHDL源代码,压缩包里是在Quartus里做的工程,FPGA用的是Cyclone1C3系列-FPGA-based phase-shifting of the DDS signal generator sine VHDL source code, compressed in the bag is done in Quartus Engineering, FPGA is used Cyclone1C3 Series
frequentmeter
- 本设计是基于MCS-51单片机的等精度频率计。输入信号为峰峰值5v的正弦信号,频率测量范围10HZ~100MHZ ,频率测量精度为0.1 。采用1602液晶显示器显示测量结果。信号源由PROTEUS 的虚拟信号发生器产生。-The design is based on the MCS-51 microcontroller, such as frequency meter accuracy. Input signal 5v peak to peak sinusoidal signal, frequ
DDS
- dds 正弦信号发生器步进100HZ 最高频率可达900kHZ 最低频率可大2.3Khz-dds signal generator sin walingbeam 100HZ
xinhao1
- 采用AVR单片机编写的正弦信号、方波信号、三角波信号发生器。使用PWM调制方式进行调制后再解调通过RC滤波器滤出信号。-AVR prepared using single-chip sinusoidal signal, square-wave signal, triangular wave signal generator. The use of PWM modulation modulation through the RC filter after the demodulation filt
ad
- 基于ATMEGA16的ad转换程序,能对正弦波进行信号采集,然后在判断求出正弦波的峰峰值。-ATMEGA16 the ad based on the conversion process can be carried out on the sine wave signal acquisition, and then calculated to determine the peak-to-peak sine wave.
example10
- 利用直接数值合成 DDS 原理驱动 dac0832 实现正弦波输出。 输出可以通过示波器观察。-The use of direct numerical synthesis of theory-driven dac0832 achieve DDS sine wave output. Output can be observed through the oscilloscope.
design
- 产生不同频率、不同幅度的两种正弦波信号 对两个信号进行叠加并做频谱分析 还原原来两个信号(LPF)-Produce different frequency, the two sine wave signals of different magnitudes of the two signals are superimposed and do spectral analysis to restore the original two signals (LPF)
LMSsin
- 原始信号、噪音均为正弦信号的LMS噪音抵消系统实现-The original signal and noise are sinusoidal signals in noise canceling system to achieve LMS
zishiyin
- 1.设计自适应信号分离器,用以从白噪声中提取周期信号。其中选取正弦信号s=sin(2*pi*t/10)为周期信号,宽带噪声信号为高斯白噪声,设置参考通道延迟为50。 2.宽带信号中的窄带干扰抑制实际上是自适应信号分离的一种应用,借助自适应信号分离器可以方便的实现窄带干扰的对消。-1. Design of adaptive signal separator, used to extract from the white noise periodic signal. The extraction
exp2_cor
- 计算正弦信号加噪声的相关函数。系数b 决定余弦相关函数在噪声指数型相关函数中的“比重”。T为正弦信号周期。正弦信号加相关噪声的相关函数图像为一个指数函数和一个余弦函数叠加的波形。-Calculated sinusoidal signal plus noise correlation function. Coefficient b determine the cosine correlation function in the noise correlation function of expon
bantu
- 简易的信号发生器版图,可以实现正弦波发生,方波发生,调幅调频,并且通过LED显示出来-Simple signal generator layout can be achieved sine wave occurs, square wave occurs, AM FM, and displayed through the LED
detection_of_phase_distributed_weak_sine_signal_ba
- 基于双耦合Duffing振子的随机相位正弦信号检测 采用双耦合混沌振子阵列实现了随机相位微弱正弦信号的检测,在此基础上,提出了新的检测方法,即利用单个耦合混沌振子,通过临界及周期状态 的变化检测随机相位微弱正弦信号并大致估计信号相位范围,该方法比双耦合混沌振子阵列法简单,更易于实现。-Based on double coupled Duffing oscillators random phase sine signals detected by two coupled chaotic o
shuanglushuzihecheng
- 摘要 电能表作为用电量的测量工具广泛的应用于各种场合。在电能表校表系统中,需要的最基本的输入信号源是高精度双路正弦信号源,并要求可对其频率、相位、幅值进行调节,来对电能表进行校准。 基于单片机的程控信号源设计,运用数字调相、数字调幅和数字调频等技术,要求实现相位、幅度、频率的高精度程控调节。本文设计了一种利用锁相环频率合成技术和数字波形合成技术组成的程控低频正弦波信号发生器,并给出了调幅、调频、调相的实用电路,频率调节通过改变8253计数器的分频系数来实现;相位调节由51单片机预置计数器
89C51pinlvjiLCD1602
- 本设计是基于MCS-51单片机的等精度频率计。输入信号为峰峰值5v的正弦信号,频率测量范围10HZ~100MHZ ,频率测量精度为0.1 。采用1602液晶显示器显示测量结果。信号源由PROTEUS 的虚拟信号发生器产生-This design is based on the MCS-51 microcontroller and other precision frequency meter. 5v peak to peak input signal is sinusoidal signal,
De-impulsenoise
- 在一段音频信号中加入了随机噪声,用matlab编程实现去噪!-This File shows an example for denoising via hard thresholding of Fourier coefficients.
wavelet-signal
- 利用小波变换对有噪正弦信号进行去噪,来实现信号优化-Wavelet transform denoising of noisy sinusoidal signals to achieve optimal signal
DSP_Builder
- 基于MATLAB DSP Builder DSP 可控正弦信号发生器设计-MATLAB DSP Builder DSP-based control design of sinusoidal signal generator
MATLAB
- 自适应信号 利用自适应信号分离器,可以有效的从白噪声中提取周期信号。现选取信号为正弦信号 ,宽带噪声信号为高斯白噪声,延迟D=50;收敛因子为 和 时的滤波效果。-Adaptive signal using adaptive signal separator, white noise can be effectively extracted from the periodic signal. Select the signal is sinusoidal signal, broadband no