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2189414139200591717859627843
- 用途：数字图象处理算法的演示，包括： • 图象的DFT和逆DFT • 图象的FFT和逆FFT • 在图象中加入正弦噪声 • 图象的模板运算实现图象平滑和锐化 • 图象的直方图均衡化 • 图象的对比度拉伸 • 图象的中值滤波 • 图象灰度直方图的显示 • 若干频域滤波器 • 图象的镜像 • 图象的旋转（
IIR2
- 数字滤波器是一种具有频率选择性的离散线性系统，在信号数字处理中有着 广泛的应用。数字滤波器的设计实际上是确定其系统函数H (z)并实现的过程。本文介绍了 用MATLAB设计、实现和分析HR数字滤波器的方法。-digital filter is a kind of frequency selective discrete linear systems, the digital signal processing has wide application. Digital filter de
DPbutterwordbilinear
- IIR数字滤波器巴特沃思设计方法，程序包括输入信号输出信号的时域频域分析图-Butterworth IIR digital filter design methods, and procedures, including the input signal when the output signal frequency domain analysis maps
pwm(adjust)
- 实现pwm的频率和占空比可调，是使用ATMEL89s52实现的，用数码管显示。-achieve pwm the adjustable frequency and duty cycle is the use ATMEL89s52 achieve. digital Display.
remez.rar
- remez函数设计FIR低通滤波器 设计滤波器，使逼近低通滤波特性 。 要求通带波纹 ，阻带衰减 ，并用最小阶数实现。绘出设计的FIR数字滤波幅频特性曲线。 ,remez function design FIR filter low-pass filter designed to approximate the low-pass filter characteristics. Requirements of passband ripple, stopband attenuation, an
OFDMcode.rar
- 完整的OFDM链路程序并作了较为具体的解析从基本的bpsk,qpsk,qam到实际的ofdm系统，cdma链路，mac层仿真分析.,Orthogonal frequency division multiplexing (OFDM) is becoming the chosen modulation technique for wireless communications. OFDM can provide large data rates with sufficient robustnes
dtmf
- 单音多频信号的产生和识别，采用FFT变换。应用于电话拨号。是学习数字信号处理的大作业。-Tone multi-frequency signal generation and recognition, the use of FFT transform. Applies to telephone dial-up. Digital Signal Processing is the study of large operations.
fir
- 用各种窗函数设计FIR数字滤波器。 分别用矩形窗和Hamming窗设计线性相位FIR低通滤波器。要求通带截止频率，单位脉冲响应h(n)的长度N=21，绘出h(n)及其幅频响应特性曲线。 -Window function with a variety of FIR digital filter design. Were rectangular window and Hamming window design of linear phase FIR low-pass filter. Req
111111111
- 各种模拟调制和数字调制的波形和频谱图，对初学者很有帮助-A variety of analog modulation and digital modulation waveform and frequency spectrum
5800C
- 5800C Fm芯片资料和驱动代码 技术特点： *国内首颗采用CMOS工艺的调频收音机芯片； *驱动能力强，可直接驱动耳机及放大器； *功耗低，比国外先进方案还低1mA； *频率覆盖从76M-108M的各国调频波段； *高度集成度，所需外围器件数为零； *强大的LOW-IF数字音频结构； *强大的数字信号处理技术（DSP）,实现自动频率控制和自动增益控制； *数字自适应噪声抑制 接受灵敏度高、音质出色、立体声效果优异； *支持重低音，可调式电台搜寻、柔
23825761Verilog
- 比较先进的直接数字频率合成器的设计。可用于频率的合成。-More advanced direct digital frequency synthesizer design. Can be used for frequency synthesis.
cordic2
- A different method to implement CORDIC Digital frequency translation
transformed_digital_highpass
- In oreder to compare Impulse Invariance method charactristics for transformation analogue filters to digital ones in highpass and bandpass and lowpass formats,here are 6 M-files that simulate a third order butterworth filter analyizing impulse respon
digitalfilter_in_C_language
- We have to design a second order Butterworth filter having a sampling frequency of 20 kHz and -3db cut of frequency at 2 kHz in visual C. Only low frequency signals can pass through this filter and the signals having the frequency higher than frequen
OFDM
- OFDM通信系统调制解调 包括数字前端处理、卷积编码、峰均值抑制、符号定时、频偏检测、信道估计、相位补偿等-OFDM modulation and demodulation communication system including digital front-end processing, convolution coding, the mean peak inhibition, symbol timing, frequency offset detection, channel estim
OFDMsystem
- 正交频分复用技术是近年来发展起来的新技术,在高速无线数据传输领域有很大的应用前景。文章在分析和总结相关文献的基础上,介绍了正交频分复用(OFDM)技术的发展历史,讨论了正交频分复用技术的基本原理和实现方法。通过分析表明,在高速无线通信中OFDM对于消除符号间干扰(ISI),降低系统的复杂度等方面具有很大优势。正交频分复用(OFDM)是一种多载波宽带数字调制技术,它能有效地克服传输中的多径干扰和消除码间串扰,适合于高速率的地面信道视频传输。本文就OFDM技术进行了较为详尽的分析,并对OFDM的传输
DDFS_verilog
- 直接数字频率综合器，采用ROM压缩法，经过FPGA验证和AISC实现-Direct digital frequency synthesizer, using ROM compression method, validation and AISC through FPGA Implementation
Baseband_Trans
- 通信系统仿真 数字基带传输系统 simulink建模-Digital frequency-hand mode Communication System Simulation
GMSK-Modem-matlab
- GMSK信号调制和解调的仿真代码，包含一比特差分、2比特差分、鉴频等常用GMSK解调方案.之前上传的GMSK Modem差分相干、2比特差分解调存在问题。-GMSK demodulation schemes including one bit differential decoding, two bit differential decoding, differential coherent and digital frequency discriminating methods.
fenpinqi
- 数字分频器，包括分频器单位冲击响应及幅频响应-Digital frequency divider, including frequency divider unit impulse response and amplitude frequency response