1.完整项目描述和程序获取
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2.部分仿真图预览
3.算法概述
在现代通信系统中，调制技术是实现高速数据传输和频谱效率优化的重要手段。其中，64QAM调制技术是一种常见的高阶调制技术，可以实现每个符号传输6个比特的信息，从而提高数据传输速率。然而，在实际应用中，调制信号往往会受到各种干扰和失真的影响，导致传输错误率增加。因此，相位估计和补偿技术是调制信号解调和恢复的关键环节之一。
4.部分源码
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module TEST;
reg clk;
reg rst;
reg start;
wire [5:0] parallel_data;
wire [15:0]sin;
wire [15:0]cos;
wire signed[19:0] I_com;
wire signed[19:0] Q_com;
wire signed[19:0] I_com2;
wire signed[19:0] Q_com2;
wire signed[15:0]I_comcos;
wire signed[15:0]Q_comsin;
// DUT
tops_64QAM_mod top(
.clk(clk),
.rst(rst),
.start(start),
.parallel_data(parallel_data),
.sin(sin),
.cos(cos),
.I_com(I_com),
.Q_com(Q_com),
.I_com2(I_com2),
.Q_com2(Q_com2),
.I_comcos(I_comcos),
.Q_comsin(Q_comsin)
);
wire signed[23:0]I_comcos2;
wire signed[23:0]Q_comsin2;
wire signed[7:0]o_Ifir;
wire signed[7:0]o_Qfir;
wire signed[15:0]o_Ifir_phase;
wire signed[15:0]o_Qfir_phase;
wire signed[31:0]o_phase;
tops_64QAM_phase_est top2(
.clk(clk),
.rst(rst),
.start(start),
.I_comcos(I_comcos),
.Q_comsin(Q_comsin),
.I_comcos2(I_comcos2),
.Q_comsin2(Q_comsin2),
.o_Ifir(o_Ifir),
.o_Qfir(o_Qfir),
.o_I_phase(o_Ifir_phase),
.o_Q_phase(o_Qfir_phase),
.o_phase(o_phase)
);
initial begin
clk = 0;
rst = 0;
start = 1;
#10;
rst = 1;
end
always #5
clk <= ~clk;
reg writeen;
initial
begin
writeen = 1'b0;
#150000
writeen = 1'b1;
end
reg[4:0]divcnt;
always @(posedge clk or negedge rst)
begin
if(~rst)
begin
divcnt<={5{1'b0}};
end
else begin
divcnt<=divcnt+{5{1'b1}};
end
end
integer fout1;
integer fout2;
initial begin
fout1 = $fopen("It.txt","w");
fout2 = $fopen("Qt.txt","w");
end
always @ (posedge divcnt[4])
begin
if(writeen==1)
begin
$fwrite(fout1,"%d\n",I_com2);
$fwrite(fout2,"%d\n",Q_com2);
end
end
integer fout3;
integer fout4;
initial begin
fout3 = $fopen("IR.txt","w");
fout4 = $fopen("QR.txt","w");
end
always @ (posedge divcnt[4])
begin
if(writeen==1)
begin
$fwrite(fout3,"%d\n",o_Ifir_phase);
$fwrite(fout4,"%d\n",o_Qfir_phase);
end
end
endmodule
00_022m
