public double getCRB() {
double p = h / var;
AllPAMSymbolGenerator gen = new AllPAMSymbolGenerator();
double bestcrb = Double.NEGATIVE_INFINITY;
double[] d = new double[T];
for (int i = 0; i < Math.pow(M, T); i++) {
double[] nextsym = gen.getNext();
// System.out.println(nextsym.length);
for (int j = 0; j < T; j++) {
d[j] = x[j] - nextsym[j];
}
double magd2 = VectorFunctions.sum2(d);
if (magd2 > 0.5) {
double std = VectorFunctions.dot(x, d);
double crb = var / (magx2 - p * std * std / Math.expm1(p * magd2));
if (crb > bestcrb) bestcrb = crb;
}
}
return bestcrb;
}
