Then we detect and estimate the carrier frequency of negative SNR DS-SS Signal have done. Theoretic analysis and simulation prove the validity of the arithmetic.
理论分析和仿真实验证明,在负信噪比条件下该方法可有效提高对DS-SS信号载波的检测能力。
2
The proposed algorithm can detect watermarking images without the help of the original carrier images and the original watermarking images.