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csuwt

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%Prepare the data, coyboy 2010-4-1
a = -150:200;  b = -53 : 297; y = a + b*i;
% ͼ1£¬Ê¹Óú¯Êýangle
y1 = angle(y);  
figure(1); subplot(1,3,1);plot(y1);title('angle');
% ͼ2£¬µ¥´¿Ê¹Óà atan£¬Ò²¾ÍÊÇÂ¥Ö÷µÄ×ö·¨
fai = atan(imag(y)./real(y));
subplot(1,3,2); plot(fai);title('atan');
% ͼ3£¬Ê¹ÓÃunwrap ºÍ atan£¬×¢Ò⣬ÎÒÕâ±ß³ËÒÔ10ÔÙ³ýÒÔ10£¬ÎªÁËÆ­¹ýunwrapº¯Êý
y2 = unwrap(10*atan(imag(y)./real(y)),3)/10;
subplot(1,3,3); plot(y2);title('unwrap(atan)');
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Robot (super robot)

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