s_axis_phase_tvalid = 0;

        s_axis_phase_tdata = 0;

     #150

        s_axis_phase_tvalid = 1;

        s_axis_phase_tdata = 16'b0001010000011011;//pi * 1/5

     #10

        s_axis_phase_tdata = 16'b1110011011011110;//-pi * 1/4

     #10   

        s_axis_phase_tvalid = 0;   

     #40000 $finish;

     end  

endmodule

仿真结果如下图：

图中标红区域值分别为:

e（pi/5）=1.87432861328125

e（-pi/4）=0.45587158203125

利用Matlab仿真结果如下图：

对比可知仿真结果一致；