产生pn1序列的子程序.m

MATLAB的源程序,包括产生随机传输数据data的子程序,eject_seq发射序列子程序,BPSK调制序列产生子程序,产生pn1序列的子程序,利用积分法实现BPSK解调,均衡pn1序列的子程序.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%pn1_generator(connections,begin_state)产生pn1序列的子程序
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function[pn1_seq]=pn1_generator(connections_1,begin_state_1) %开始状态begin_state_1 连接结构connections_1
echo on
%connections_1=[1 0 0 0 1];
m=length(connections_1);      %m  the length of the pn1_seq  os_seq( 1:7)=pn1_generator([1 0 1],[1 0 0])
L=2^m-1;
registers=begin_state_1;
pn1_seq(1)=registers(m);
for i=2:L
    new_reg_cont(1)=connections_1(1)*pn1_seq(i-1);
    for j=2:m
        new_reg_cont(j)=rem(registers(j-1)+connections_1(j)*pn1_seq(i-1),2);
    end;
    registerc=new_reg_cont;
    pn1_seq(i)=registers(m);
end