硬判决viterbi约束长度9测试，c＋＋代码.-hard decision Viterbi constraint length 9 test, c + + code.

This function provides an ARMA spectral estimate which is maximum entropy satisfying correlation constraint (number of poles)and cepstrum constrains (number of ceros) The function requires 3 inputs: Input signal, Order of denonominator, Order

BPSK仿真在AWGN信道下产生卷积码和非卷积码的比较，约束长度7，多项式[171,133],码率1/2，分别采用硬判决和软判决,Convolutional code and convolutional code comparison, simulation BPSK in AWGN channel constraint length 7 polynomial [171,133], code rate 1/2, respectively, using the hard-decision and

PKIX Name Constraint Validator Source Code for Andriod.