%% Rate setup
fs = 4096e6;
Ts = 1/fs;

%% Host Sample Time in Simulation
TsHost = 5e-5;

SamplesPerCycle = 16;

FPGAClkRate = fs/SamplesPerCycle;
TsFPGA = 1/FPGAClkRate;

%% Channelizer parameters

% Number of channels, maximally decimated channelizer M/D=1
nChan = 128;

% Taps per band
nTapsPerBand = 12;

% 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 out of channelzier
nFrames = nChan/SamplesPerCycle;

% Frame size after serializing x2
frameSize = SamplesPerCycle/2;

%% Detection parameters

% Moving average window length
movingAverageWindowLength = 64;

% Moving average comparison offset
movingAverageCompareOffset = 32;

% Threshold for ratio of current moving average to offset
thresholdScale = 500;
thresholdScaleDT = fixdt(1,18,-6);
thresholdScaleFi = fi(thresholdScale, thresholdScaleDT);

%% Tx signal generator parameters

% NCO accumulator word length
NCOAccumWL = 16;

% NCO phase increment scale factor
NCOIncScale = Ts*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 width
pulseWidth = 8e-6;

% Pulse start/end frequencies
pulseStartFreq = 1305e6;
pulseEndFreqOffset = 15e6;

% Number of pulses
numPulses = 2;

% Pulse repetition interval
PRI = 50e-6;

% Output gain
pulseGenGain = 1;

%% Capture parameters

% Time to capture after a detection
captureDuration = 10e-6;
captureLength = round(captureDuration*chanBW);

% Length of capture frame
% Contains I/Q data plus channel number and two words of timestamp
captureFrameLength = captureLength+3;

% Max number of capture frames in a DMA packet
captureFramesPerPacket = 50;

% Timeout to transfer a DMA packet if number of frames less than max
capturePacketTimeout = 1e-3;

%% DMA parameters

% DMA packet length
DMAPacketLength = captureFrameLength*captureFramesPerPacket;
DMAPacketSize = captureFrameLength*captureFramesPerPacket;

% Number of DMA buffers
DMANumBuffers = 8;

% DMA FIFO depth
DMAFIFODepth = 4096;

%% Software parameters

% Signal generator update rate
TsSW = 0.25;

%% Simulation parameters

% Sim run time
% stoptime = PRI*numPulses + 1e-3;
stoptime = PRI*captureFramesPerPacket + 1e-5;