在检测与估计中 仿真给出检查概率与虚警概率的关系 Pfa=1-Q(z),Pd=1-Q(z-d),画不同d情况下Pfa与Pd的关系图-In the detection and estimation of simulation shows that the relationship between the check probability and false alarm probability Pfa = 1-Q (z), Pd = 1-Q (zd), PFA and Pd diagram Vid