Hi everyone!
(i) can anyone tell me how to construct rectangular pulse in matlab;
(ii)also plz tell the code for the input that can be given to a band pass
filter to analyse the filter. Plz tell a simple one . I hv tried a
summation of cosine of different frequencies but not got the correct
response. The code for my band pass filter design is
n1=200
f1=1000
w1=2*95/f1;
w2=2*105/f1;
wn=[w1 w2];
y1=boxcar(n1+1);
g1=hann(n1+1)
j1=y1.*g1
hd1=fir1(n1,wn,j1);
[h1,o]=freqz(hd1);
m1=20*log10(abs(h1));
plot(m1)  




plz help me out .its urgent

>Hi everyone!
>(i) can anyone tell me how to construct rectangular pulse in matlab;
>(ii)also plz tell the code for the input that can be given to a band pass
>filter to analyse the filter. Plz tell a simple one . I hv tried a
>summation of cosine of different frequencies but not got the correct
>response. The code for my band pass filter design is
>n1=200
>f1=1000
>w1=2*95/f1;
>w2=2*105/f1;
>wn=[w1 w2];
>y1=boxcar(n1+1);
>g1=hann(n1+1)
>j1=y1.*g1
>hd1=fir1(n1,wn,j1);
>[h1,o]=freqz(hd1);
>m1=20*log10(abs(h1));
>plot(m1)  
>
>
>
>
>plz help me out .its urgent
>

rec_pulse=ones(1,12);

student28 wrote:
> Hi everyone!
> (i) can anyone tell me how to construct rectangular pulse in matlab;
> (ii)also plz tell the code for the input that can be given to a band pass
> filter to analyse the filter. Plz tell a simple one . I hv tried a
> summation of cosine of different frequencies but not got the correct
> response. The code for my band pass filter design is
> n1=200
> f1=1000
> w1=2*95/f1;
> w2=2*105/f1;
> wn=[w1 w2];
> y1=boxcar(n1+1);
> g1=hann(n1+1)
> j1=y1.*g1
> hd1=fir1(n1,wn,j1);
> [h1,o]=freqz(hd1);
> m1=20*log10(abs(h1));
> plot(m1)
>
>
>
>
> plz help me out .its urgent

I suggest that you write a comment for *EACH* line of code. {Full 
grammatical sentence(s). Then compare your comment to the code 
you wrote. I've never used matlab but some code looks suspect and 
you have at least one typo.

On Jul 8, 9:54=A0am, "student28" <ritu_physics@n_o_s_p_a_m.yahoo.co.in>
wrote:
> Hi everyone!
> (i) can anyone tell me how to construct rectangular pulse in matlab;
> (ii)also plz tell the code for the input that can be given to a band pass
> filter to analyse the filter. Plz tell a simple one . I hv tried a
> summation of cosine of different frequencies but not got the correct
> response. The code for my band pass filter design is
> n1=3D200
> f1=3D1000
> w1=3D2*95/f1;
> w2=3D2*105/f1;
> wn=3D[w1 w2];
> y1=3Dboxcar(n1+1);
> g1=3Dhann(n1+1)
> j1=3Dy1.*g1
> hd1=3Dfir1(n1,wn,j1);
> [h1,o]=3Dfreqz(hd1);
> m1=3D20*log10(abs(h1));
> plot(m1) =A0
>
> plz help me out .its urgent

Why isn't comp.soft-sys.matlab in your newsgroup list?
i.e.,

Newsgroups: comp.dsp, comp.soft-sys.matlab

Hope this helps.

Greg
Greg