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" 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  |  Pages: 1 Prev: Realizing modulation using complex dataNext: daughterboard AED-103 from Signalware