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fft
正交频分复用系统中信号的调制与解调,我们用傅里叶反变换和变换来实现(Orthogonal frequency division multiplexing system signal modulation and demodulation, and we use the inverse Fourier transform to achieve transform)
- 2013-07-18 11:42:59下载
- 积分:1
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IIR
使用matlab实现设计IIR滤波器:冲激不变法、双线性变换法
设计一个巴特沃思低通滤波器,其技术指标为:3dB带宽为,阻带截止频率为,阻带衰减大于30dB,采样间隔T=10us。
1)用冲激响应不变法
2)用双线性变换法设计
3)用FIR的矩形窗函数设计
二、用双线性变换法分别设计低通、高通、带通、带阻四种滤波器。模拟滤波器带原型分别为切比雪夫滤波器和椭圆滤波器,采样率Fs=20kHz,指标如下:
1)低通:通带0~4 kHz,阻带5 kHz,通带衰减Rp=0.5dB,阻带衰减As=10dB。
2)高通:阻带0~4 kHz,通带5 kHz,通带衰减Rp=0.5dB,阻带衰减As=10dB。
3)带通:通带2kHz~4 kHz,阻带0~1.5 kHz,4.5kHz以上,通带衰减Rp=0.5dB,阻带衰减As=10dB。
4)带阻:阻带2kHz~4 kHz,通带0~1.5 kHz,4.5kHz以上,通带衰减Rp=0.5dB,阻带衰减As=10dB。(Using MATLAB to implement the design of IIR filters: impulse invariant and bilinear transformation)
- 2018-01-06 15:19:26下载
- 积分:1
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RS_code_OFDM_modulation
基于MATLAB平台的通信系统的仿真,RS编码,OFDM调制,加入PLC信道噪声,并进行误码率的检测,运行无误,程序完整。(MATLAB-based communications system simulation platform, RS coding, OFDM modulation, adding PLC channel noise, and make BER testing, run correctly, the program integrity.)
- 2013-09-16 17:56:39下载
- 积分:1
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MathType
说明: MathType需要与其他文档编辑工具搭配使用,并且能够与office系列软件完美兼容,可用在编辑数学试卷、书籍、报刊、论文、幻灯演示等方面,是编辑数学资料的得力工具,所以受到了广大用户的一致好评。并且office系列本就内置有MathType的缩减版,这让用户们更加易于上手。(MathType needs to be used with other document editing tools, and can be perfectly compatible with office series software. It can be used in editing math papers, books, newspapers, papers, slide shows, etc. it is a powerful tool for editing math materials, so it has been unanimously praised by the majority of users. And the office series has a reduced version of MathType built in, which makes it easier for users to get started.)
- 2020-04-03 02:09:10下载
- 积分:1
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bpsk
用C++实现BPSK的仿真,包括信源,调制,信道,解调,计算误比特率(Using C++ implementation BPSK simulation, including source, modulation, channel, demodulator, bit error rate calculation)
- 2020-12-11 14:59:17下载
- 积分:1
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语音小车
智能语音小车标准程序,已经测试通过了的。完全没有问题。(The standard program of intelligent voice car has passed the test. No problem at all.)
- 2020-06-17 20:20:07下载
- 积分:1
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FIR
巴特沃斯滤波器C语言实现,低通滤波器。IIR(Butterworth filter C language)
- 2009-02-16 09:48:46下载
- 积分:1
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colea444
This includes how to protect the speaker using matlab functions.
- 2010-03-03 09:21:36下载
- 积分:1
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新建文件夹
分析瑞利衰落信道下qpsk的snr与ber的关系(The relationship between QPSK SNR and ber in Rayleigh fading channel is analyzed)
- 2018-11-13 11:44:00下载
- 积分:1
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AUCFR-thesistemplate
thesis document used for ph.d degree
- 2019-03-24 22:22:49下载
- 积分:1