87 lines
1.8 KiB
Matlab
87 lines
1.8 KiB
Matlab
%% Derived from preload
|
|
fs_eff = fs_RF/IntDecFactor; % Effective fs before interpolation / after decimation
|
|
Ts_eff = 1/fs_eff;
|
|
|
|
%% Host Sample Time in Simulation
|
|
%TsHost = 5e-5;
|
|
|
|
FPGAClkRate = fs_eff/SamplesPerCycle;
|
|
TsFPGA = 1/FPGAClkRate;
|
|
%% Tx signal generator parameters
|
|
|
|
% NCO accumulator word length
|
|
NCOAccumWL = 16;
|
|
|
|
% NCO phase increment scale factor
|
|
NCOIncScale = Ts_eff*2^NCOAccumWL;
|
|
|
|
% NCO phase increments datatype
|
|
NCOIncDT = numerictype(1,NCOAccumWL,0);
|
|
|
|
% NCO counter increment datatype
|
|
NCOCountIncDT = numerictype(1,NCOAccumWL*2,NCOAccumWL);
|
|
|
|
%% Test signal parameters
|
|
|
|
% Pulse start/end frequencies
|
|
pulseCentFreq = 0e6;
|
|
pulseBw = 32e6; % Pulse bandwidth
|
|
|
|
% Number of pulses
|
|
numPulses = 10;
|
|
|
|
% Pulse repetition interval
|
|
PRF = 20e3;
|
|
PRI = 1/PRF;
|
|
|
|
|
|
|
|
% Pulse time duration
|
|
%pulseT = 10; % use very long pulse help emulate CW
|
|
pulseT = 8e-6;
|
|
|
|
% CW mode (bypass pulse generation)
|
|
CwMode = true;
|
|
|
|
% Counter mode (bypass pulse and CW generation)
|
|
CounterMode = true;
|
|
|
|
% Output gain
|
|
pulseGenGain = 1;
|
|
|
|
%% Software parameters
|
|
|
|
% Signal generator update rate
|
|
TsSW = 0.0005;
|
|
|
|
%% Simulation parameters
|
|
|
|
% Sim run time
|
|
%stoptime = TsFPGA*(9 + 1*348 + 1 + 2*128 + 1); %10*TsSW; %TsFPGA*(1*128+348)
|
|
|
|
%% Channelizer parameters
|
|
|
|
%Number of channels, maximally decimated channelizer M/D=1
|
|
nChan = 512;
|
|
|
|
%Taps per band
|
|
nTapsPerBand = 16;
|
|
|
|
%Create channelizer object
|
|
channelizer = dsp.Channelizer('NumFrequencyBands',nChan,...
|
|
'DecimationFactor',nChan,...
|
|
'NumTapsPerBand',nTapsPerBand);
|
|
%Channelizer coefficients
|
|
channelizerCoeffs = channelizer.coeffs.Numerator;
|
|
|
|
%Channel bandwidth
|
|
%chanBW = fs/nChan;
|
|
|
|
%Starting frequency for each channel
|
|
%chanFStart = chanBW/2:chanBW:(fs/2-chanBW/2);
|
|
|
|
%Number of frames in the DPW
|
|
nFrames = 1024;%nChan/SamplesPerCycle;
|
|
|
|
% Frame size after serializing x2
|
|
%frameSize = SamplesPerCycle/2; |