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From: student28 on 8 Jul 2010 09:54
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
From: cpshah99 on 8 Jul 2010 10:10
>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);
From: Richard Owlett on 8 Jul 2010 10:38
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.


From: Greg Heath on 12 Jul 2010 04:10
On Jul 8, 9:54 am, "student28" <ritu_physics(a)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=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

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
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