construct_sim.m

国外大学的同志作出来的好程序

function sim=construct_sim;
%create an empty structure for simulations.
sim = struct('sampling_rate', 0, ...
    'carrier_freq', 0, ...
    'symbol_rate', 0, ...
    'bandwidth', 0, ...
    'packet_type', '', ...     %default='sc/cont/none'. 'ofdm/sc_nude/ofdm_nude/preamble
    'packet_time', 0, ...      %if 0, need calculation;
    'blank_time', 0, ...       %if 0, then no quiesence period.
    'lfm_type', '', ...        %default='none', 'lfmxxx/lfm_dopplerxxx.
    'lfm_time', 0, ...
    'preamble_type', '', ...   %default='none', 'mseq/zac_mseq
    'preamble_time', 0, ...
    'frame_time', 0, ...       %if 0, need calculation.
    'frame_num',  0, ...       %if 0, need calculation.
    'prefix_type', '',...      %default='none'. 'meq/zac_mseq
    'prefix_time', 0, ...
    'appendix_type', '',...    %default='none'. 'meq/zac_mseq/prefix
    'appendix_time', 0, ...
    'frame_data_time', 0,...   %if 0, calculation
    'frame_data_len', 0,...    %need calculation at all times.
    'coding_type', '', ...     %default='none'. 802_15_3_tcm/802_16_ctc_arp/802_16_ctc_random
    'coding_rate', 0,...       %overal rate of the code
    'n_k', 0, ...                 %[n k] value of trellis
    'coding_reg_num', 0, ...      %the number of registers in trellis codes
    'interleaver', '', ...        %default='none'. 'random.
    'interleaver_val', 0,...
    'mapping_type', '', ...       %default='none';
    'mapping_rate', 0, ...
    'mapping_msb', '',...          %default='msb_first'. 'lsb_first
    'tx_num', 0, ...               %number of transmitter
    'multiplex_type', '', ...      %default='no_multiplex'.
    'multiplex_outvec', 0, ...     %the output pins of the multiplexor
    'space_time_code', '',...      %default='none'. 'Alamouti/complex orthogonal(co2)/co3/co4/etc...
    'stc_rate', 0,...              %if tx_num=1, no meaning.
    'pulse_shaping_type', '', ...  %default='rect'. 'sqrt/normal/etc..;
    'ps_alpha', 0, ...
    'ps_grp_delay', 0);