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61 Threads found on Raised Cosine Filter
hi i tried to understand the following parameters for root raised cosine filter in cadence but did not getting correct o/p.: alpha over_samples group_delay frame_time numChipsOut can any one guide how to set the parameters for 50Gb/s square wave for OOK modulation. Thanks
Are you talking about raised cosine filter spectral shaping in digital communications? If not, please clarify what is the context.
I have a simulink model (using Comm. Toolbox / DSP blocks) I have built that will do QAM modulation just fine with pulse-shaping (using Root-raised cosine filter). I'm trying to get a Baseband signal to RF for time-domain analysis for a RF PA. I need an LTE like signal with a high PAPR. So I am using an OFDM modulation on 16-QAM coding. (...)
I don't know if you have the possibility to change the shape of the pulse using a raised-cosine filter with acceptable bandwidth and roll-off factor, to meet the other system requirements. I think this would solve the most of the spectrum problems.
Hello everyone, I want to implement a raised cosine filter to properly shape my data. Data speed is 1 Mbps. I've got some experience with PIC microcontroller plus I've PICkit 2. So I'd like to use dsPIC only. I've no idea how I am gonna do it (may be using tapped delay line) but before starting to learn dsPIC...I just wanted to ask, Can
Hi, I want to know how to draw the frequency response of raised cosine filter (using the equation ) in MATLAB. I tried to implement the equation in MATLAB but I am not successful in getting the expected result. Can any one please help me with the code?
Hello, I'm simulating DVB-S2 blocks' chain with SIMULINK Matlab. I'm using DVB-S2 demo already loaded in SIMULINK libraries, I want to add to it a raised cosine filter in transmitting and in receiving, but I have high values of BER, around 0.49 with ANY Es/No values. What's Wrong? I'm using those values about raised (...)
The first proposed EDGE measurement filter was a raised-cosine filter with noise bandwidth similar to that of a practical receiver. man and van surrey
hi, i would like to know where to put the RRC at the modulator? whether before modulation process(Block diagram A) or after modulation process (Block diagram B)?is there going to be any difference between
I need the MATLAB code for a 3-tapped raised cosine function with impulse response f=.I really need it,plz help me.tnx
I have a set of symbol values to be modulated FM. Square root raised cosine filter is required for pulse shaping before FM modulation process. Roll off factor is given as 0.2. I wonder how transmitter pulse shaping filter order and its structure affects bit error rate after modulation and demodulation process?
why we use hilbert transform and raised cosine filter in matlab??:roll::roll:
I want to know that square root raised cosine filter equation (following equation) can be used at both transmit and receive? h(n)= (4Rcos((1+R)2πnfc)+(sin⁡((1-R)2πnfc))/(8RkT_s fc))/(πF_s √(1/2fc)((8Rnfc)^2-1)) -∞
How could I do this function? = Rootraisedcosine(P, B ,T) It has to generate a vector with 2P+1 coefficients of a root raised cosine filter with roll-off= B and period = T. stc so is an struct. I have read about rcosine, rcosflt and design.pulseshaping and don't know how to use (...)
Hi. First of all, sorry for my english :D I'm trying to simulate a 64-QAM modulation with LDPC coding and raised cosine transmit filter. The source block has a sample time of Ts=4.873148e-10, seed = 25 and outputs frames of dimension 32400 bits. Then the LDPC block codes with a coderate 1/2 and outputs frames of 64800 bits. The LDPC uses (...)
hi i have a question about raised cosine filters. what are raised cosine filters? what are the use of raised cosine filter or any speciality? during modulation if we increase the roll of rate and group delay what will happen? thanls (...)
hi all, m a student and doing a project on low power physical layer transceiver. but m stuck now in srrc filtering. i need to calculate the power taken by the square root raised cosine filter so that i can compensate by adding that much of power to the power amplifier. can anyone please suggest me how to calculate (...)
its urgent i need to submit,i did pulse shaping using rom but i need details regarding root raised cosine
Here is 4QAM basic modem model made with Matlab 2009b Simulink. You can easily add 4 more phases in the TX1D/RX2D lists. All of used ones are 30deg shifted now. The signal filtering is made using raised cosine filter, so You can remove them if not needed. If the model doesn't work (Altera DSP builder error or smth..), (...)
A doing my final year project which involves the design of a MIMO( multi-input Multi-output ) indoor wireless communication system where am required to use for transmit and four receive antennas, my problem is on how to design a pulse shaping filter( root-raised cosine filter) and interfacing the output of this (...)