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设计中使用的信号为 信息信号： signal=sin(2*pi*sl*n*T) 高频噪声： noise =0.5*sin(2*pi*ns1*n*T) 混合信号： x=(signal+noise) 其中sl=1000Hz，ns1=4500Hz，T=1/10000。混合信号波形为滤波器输入信号波形，信息信号波形为输出信号波形，滤波器的效果为滤除两个高频噪声。 ...

jiaocao yongyu tongxingongcheng xinhao xuexi 

This report presents a tutorial of fundamental array processing and beamforming theory relevant to microphone array speech processing. A microphone array consists of multiple microphones placed at different spatial locations. Built upon a knowledge of sound propagation principles, the mult ...

We consider the problem of target localization by a network of passive sensors. When an unknown target emits an acoustic or a radio signal, its position can be localized with multiple sensors using the time difference of arrival (TDOA) information. In this paper, we consider the maximu ...

A simple example of audio signal processing on TMS320VC5416 USB DSK board. Main source is contained in tone.c file, memory configuration - tonecfg.cmd. Folder docs/ contains useful docmentation on board, its components and libraries. The example's configuration is based on example "tone" from Code C ...

The 4.0 kbit/s speech codec described in this paper is based on a Frequency Domain Interpolative (FDI) coding technique, which belongs to the class of prototype waveform Interpolation (PWI) coding techniques. The codec also has an integrated voice activity detector (VAD) and a noise reduction capabi ...

用matlab实现bpsk调制 用randi函数产生10000个0、1随机数，对原信号signal进行判断，       若为0，则生成调制信息1，若为1，则生成调制信息-1，从而实现BPSK调制。

利用randi函数产生10000个0、1随机数，对原信号signal进行分类每两个相邻随机数作为新信息SIGNAL并进行判断，若为0，则生成调制信息1+i，若为1，则生成调制信息-1+i，若为2，则生成调制信息-1-i，若为3，则生成调制信息1-i，从而实现QPSK调制 ...

The BTS5016SDA is a one channel high-side power switch in PG-TO252-5-11 package providing embedded protective functions. The power transistor is built by a N-channel vertical power MOSFET with charge pump. The design is based on Smart SIPMOS chip on chip technology. The BTS5016SDA has a current cont ...

% Computation of ST-ZCR and STE of a speech signal. % % Functions required: zerocross, sgn, winconv. % % Author: Nabin Sharma % Date: 2009/03/15 [x,Fs] = wavread('so.wav'); % word is: so x = x.'; N = length(x); % signal length n = 0:N-1; ts = n*(1/Fs); % time for signal % define the window wintyp ...