...-m�39;,u3,F3,�39;-k�39;,u4,F4,�39;-m>bm>�39;,�39;LineWidth�39;,2)m>titlem>(�39;汽车驱动力与阻力平衡图�39;);xlam>bm>el(�39;u_{a}/km.h^{-1}�39;)ylam>bm>el(�39;F/N�39;)gtext(�39;F_{t1}�39;)gtext(�39;F_{t2}�39;)gtext(�39;F_{t3}�39;)gtext(�39;F_{t4}�39;)gtext(�39;F_...

时间:2024-11-03 23:14栏目:行业资料

暑假初一英语词汇Lessonone1.rugm>bm>y[�39;rʌɡm>bm>i]n.橄榄球运动2.m>titlem>[�39;taitl]n.标题3.greeting[�39;ɡri:tiŋ]n.问候4.signature[�39;signətʃə]n.签名5.address[ə�39;dres]n.地址6.m>pm>enfriend[�39;m>pm>en,frend]n.笔友7.magazine[,mæɡə�39;zi:n]n.杂志8.own[əun]v.拥有9.a...

时间:2024-10-26 16:26栏目:行业资料

...ot(t,y,�39;k�39;,t,ones(m,1),�39;k-.�39;)%drawunitstem>pm>resm>pm>onsecurvem>titlem>(�39;unitstem>pm>resm>pm>onse�39;,�39;FontSize�39;,8)xlam>bm>el(�39;Time(sec.)�39;,�39;m>Pm>osition�39;,[5.5-0.21],�39;FontSize�39;,8)ylam>bm>el(�39;Amm>pm>litude�39;,�39;FontSize�39;,8)axis([0602])sum>bm>m>pm>lot(2,1,2),m>pm>lo...

时间:2024-10-26 11:33栏目:行业资料

...(I)%画衍射屏的形状colormam>pm>([000;111])%颜色以黑白区分axisimagem>titlem>('衍射屏形状')L=300;M=300;%取相同点数用于矩阵运算[x,y]=meshgrid(linsm>pm>ace(-L/2,L/2,M));h=exm>pm>(j*k*z)*exm>pm>((j*k*(x.^2+y.^2))/(2*z))/(j*lamda*z);%接收屏H=fftshift(fft2(h));m>Bm>=fftshift(fft2(I));%圆孔频谱G...

时间:2024-09-27 20:27栏目:党建公文

...)=h*G(i,j);endendm>pm>=uint8(real(ifft2(ifftshift(G))));sum>bm>m>pm>lot(341);imshow(f),m>titlem>(�39;原图�39;);sum>bm>m>pm>lot(345);imshow(log(am>bm>s(f2)),[]),m>titlem>(�39;频谱�39;);sum>bm>m>pm>lot(349);imhist(f),m>titlem>(�39;原图�39;);sum>bm>m>pm>lot(342);imshow(g),m>titlem>(�39;噪声�39;);sum>bm>m>pm>lot(346);imshow(log(am>bm>s(g2)),[]),t...

时间:2024-09-26 13:26栏目:党建公文

...1=500;nt=cos(2*m>pm>i*fc1*t);sum>bm>m>pm>lot(3,3,1);m>pm>lot(t,nt);axis([-Tm>pm>/8,Tm>pm>/8,-2,2]);m>titlem>(�39;噪声波形�39;);xlam>bm>el(�39;t(s)�39;);ylam>bm>el(�39;n(t)�39;)fst=fft(nt,N);fst=fftshift(fst);k=-N/2:N/2-1;f=k/Tm>pm>;am>bm>s(fst);sum>bm>m>pm>lot(3,3,2);stem(f,am>bm>s(fst),�39;.�39;);grid;axis([-Fs/2,Fs/2,0,1.2]);m>titlem>(&...

时间:2024-09-25 18:08栏目:中学教育

...２）；m>pm>loｔ（fx(１:length(fx)）,am>bm>s(Ｘ（1：leｎｇth（fx）)));m>titlem>(�39;我的声音信号的频谱＇);ｘlaｂel（�39;f/Hz＇);ylａm>bm>el(＇幅值＇);gridｏn;holdｏｎ;原唱信号处理相同,只需将文件名更改即可。结果波形如下。分析:排除跑调，抢拍等...

时间:2024-09-11 09:43栏目:行业资料

...题)1０：Iｌostam>bm>ｏｏk,__＿___Ican＇tｒｅｍｅmm>bm>ｅrnow.A:whosem>titlem>Ｂ:iｔｓtitlｅC:ｔhetｉtｌeofiｔD:thetiｔleｏｆｔhａt正确答案：(单选题)11:Ｈｅisｎｏtsuchaman_______woｕldｌeavehiｓwｏrkhaｌfdoｎe.A:thａtm>Bm>:ｗhichＣ:wｈoＤ:as正确答案：(单选题...

时间:2024-09-11 08:42栏目:行业资料

...w０*ｔ);%载波信号figure（1);sum>bm>m>pm>ｌot(2,1，１)；m>pm>ｌot(ｔ,Ｕc);titlｅ(�39;载频信号波形＇);axiｓ（［０,0.０1，-15,１5]）;sｕm>bm>m>pm>lot(2,1,2);Ｙ1=fft（Uc);%对载波信号进行傅里叶变换ｐlot(am>bm>s(Y1));tｉtｌe(＇载波信号频谱�39;);axis([5８0０,620０,0,10...

时间:2024-09-10 20:12栏目:高等教育