matlab 으로 신호 받아서 퓨리에 변환함.

소개글

x(t)를 받아서 프리에 변환을 합니다.
변환시 Ts와 Timerage를 변경에따라 어떻게 변환하는지 하는겁니다.


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1. Spectrum of a signal is as follows;
(a) Determine from its spectrum.
(b) Write a matlab function 'DiscreteSignal' that produces discretized version of . The matlab file "DiscreteSignal.m" is as following;

function [xn,t]=DiscreteSignal(Ts,TimeRange);
% Ts: sampling time interval
% TimeRange : Observation time
% xn : discrete signal xn=x(n*Ts)
% t : sampling points at time index, that is, "t=0:Ts:TimeRange"

(c) Determine Nyquist sampling time Ts, and discretize x(t) with the Ts. Overlay plots of the discrete signals by using 'stem(t,xn)' and 'plot(t,xn)'.

(d) Sample x(t) with the Ts/2. Overlay plots of the discrete signals by using 'stem(t,xn)' and 'plot(t,xn)'.

(e) Sample x(t) with the Ts/5. Overlay plots of the discrete signals by using 'stem(t,xn)' and 'plot(t,xn)'.

(f) Observe discrete signals as varying sampling time.

(g) Discretize x(t) with the Ts/2. Plot the discrete signal by using 'stem(xn)'.

(h) Note the difference between 'stem(t,xn)' and 'stem(xn)'.

* Things to be turned in.
- Source code
- Plots with your observation and comments.

컴파일 실행환경

matlap

압축파일 내 파일목록

DSP(matlap).hwp
Matlab(HW1).hwp

참고 자료

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