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J C

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Files Posted by J View all
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18 May 2009 Simple PLL demostration This m-file demonstrates PLL operation Author: J C pll m_file phase dete..., pll m_file phase dete... 100 1
  • 5.0
5.0 | 1 rating
06 May 2009 GOLD CODE GENERATOR Generates a set of 33 Gold codes with 2^n-1 chips (n=5). Author: J C gold codes msequences... 59 0
17 Jul 2008 QPSK_VIDEO These files show the SER and BER ( image data) for BPSK, QPSK, and 8PSK with Gray coding Author: J C bpsk, 8psk, image, gray, qpsk, ber 40 2
  • 5.0
5.0 | 1 rating
07 Jul 2008 QPSK Simulation/Gray Coding/Rayleigh Fading This m-file shows a baseband simulated version of QPSK with Gray coding (Rayleigh fading and AWGN ad Author: J C qpsk gray coding rayl..., wireless 131 2
  • 4.5
4.5 | 2 ratings
09 Mar 2008 UWB Receiver/Transmitter Using Continuous Wave M-file uses random data which modulates a carrier to configure a BPSK UWB transmitter/receiver syste Author: J C uwb continuous wave m..., wireless, ds uwb 44 3
  • 5.0
5.0 | 2 ratings
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17 May 2010 Simple PLL demostration This m-file demonstrates PLL operation Author: J C Cuervo Pinilla, Andres Camilo

PLEASE SR I WOULD LIKE TO KNOW THE MEAN OF SOME VARIABLES:

phi_hat(1)=30;
e(1)=0;
phd_output(1)=0;

vco(n)=conj(exp(1i*(2*pi*n*f/fs+phi_hat(n-1))));%Compute VCO
phd_output(n)=imag(Signal(n)*vco(n));%Complex multiply VCO x Signal input
e(n)=e(n-1)+(kp+ki)*phd_output(n)-ki*phd_output(n-1);%Filter integrator
phi_hat(n)=phi_hat(n-1)+e(n);%Update VCO

ALSO I WOULD LIKE TO KNOW HERE I COULD FIND SOME BOOKS TO READ ABOUT PLL

THANKS
AC
14 May 2010 MPSK Simulation (BPSK,QPSK,8PSK) This m-file simulates MPSK (theoretical and simulated) with Gray coding Author: J C muhammad, fanani

i have the same problem with holly :
??? Error: File: graymapPSK.m Line: 8 Column: 17
The expression to the left of the equals sign is not a valid target for an assignment.

Error in ==> MPSK at 49
symbols = graymapPSK(bits); % gray code map to symbols

somebody help please ASAP......... or email me: fananideta@yahoo.com
08 Jan 2010 Low Pass Filter Design Using Z Transforms This m file constructs low pass filters with -3dB bandwidths from 100Hz to >1Ghz using z transforms. Author: J C Ceena Thana, Karuppiah

12 Oct 2009 QAM Tutorial2 This m-file calculates the theoretical exact(in AWGN) SER verses Eb/No for even number of bits per s Author: J C izzat, muhammad

i got error

~??? Index exceeds matrix dimensions.

Error in ==> QAM16_TUTORIAL at 14
qam = constellation_qam1(floor((64)*randint(1,10000))+1);%Generate 16QAM symbol
sequence(complex)
07 Aug 2009 QPSK Simulation/Gray Coding/Rayleigh Fading This m-file shows a baseband simulated version of QPSK with Gray coding (Rayleigh fading and AWGN ad Author: J C Mak

Hi, krishna ..
i have been working on viterbisim.m which is a built-in matlab example for understanding the ber tool.. i that i have tried to change the code rate to 2/3 with trellis structure of
t = poly2trellis([5 4],[23 35 0; 0 5 13]); but output ber graph is completely unexpected n highly fluctuated.. i m not working on simulink ..plz help me how can i resolve this issue ..
basically my project is on mimo-ofdm so far i have done ofdm transceiver which works ok without rayleigh which is like this
data source ->FEC(2/3)->qpsk->ofdm ......but i need to send bits in a loop for more accurate ber that is i dont have to guess in advance ! thats y i m working on viterbisim.m... plz help m i have hardly got 2months to submit it ...
thanks in advance
Top Tags Applied by J
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wireless, 8psk, ber, bpsk, filtering
Files Tagged by J View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
18 May 2009 Simple PLL demostration This m-file demonstrates PLL operation Author: J C pll m_file phase dete..., pll m_file phase dete... 100 1
  • 5.0
5.0 | 1 rating
06 May 2009 GOLD CODE GENERATOR Generates a set of 33 Gold codes with 2^n-1 chips (n=5). Author: J C gold codes msequences... 59 0
17 Jul 2008 QPSK_VIDEO These files show the SER and BER ( image data) for BPSK, QPSK, and 8PSK with Gray coding Author: J C bpsk, 8psk, image, gray, qpsk, ber 40 2
  • 5.0
5.0 | 1 rating
07 Jul 2008 QPSK Simulation/Gray Coding/Rayleigh Fading This m-file shows a baseband simulated version of QPSK with Gray coding (Rayleigh fading and AWGN ad Author: J C qpsk gray coding rayl..., wireless 131 2
  • 4.5
4.5 | 2 ratings
09 Mar 2008 UWB Receiver/Transmitter Using Continuous Wave M-file uses random data which modulates a carrier to configure a BPSK UWB transmitter/receiver syste Author: J C uwb continuous wave m..., wireless, ds uwb 44 3
  • 5.0
5.0 | 2 ratings

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