set_comm_ofdm_parameters.m

国外大学的同志作出来的好程序

function sim=set_comm_parameters(sim);
%set comm_parameters for a group of packets.
sim.sampling_rate=192000;
sim.carrier_freq=12000;
sim.symbol_rate=4000;
sim.bandwidth=6000;
sim.packet_type='ofdm';

sim.blank_time=250e-3;       %if 0 then no quiesence period.
sim.lfm_type='lfm_doppler50';      %if empty then, no lfm.
sim.lfm_time=300e-3;


sim.tx_num=1;                %number of transmitter
sim.multiplex_type='';
sim.multiplex_outvec=[];     %the output pins of the multiplexor
sim.space_time_code='';      %Alamouti, complex orthogonal (2*2)-oc2, etc...
sim.stc_rate=[];


sim.interleaver='';   %if empty then, no interleaver.
sim.interleaver_val=[];

sim.mapping_msb='msb_first'; %'msb_first'(default), 'lsb_first'
sim.pulse_shaping_type='sqrt'; %if empty then, no pulse_shaping.
sim.ps_alpha=0.95;
sim.ps_grp_delay=5;