Finally, making use of autocorrelation function characteristic of spread spectrum sequence, watermark information was detected. In the detection process, it is not requisite for initialcarrier image.
最后利用扩频序列的自相关函数特征检测出水印信息，检测过程中不需要原始载体图像。
2
All the satellite needs in order to move in its orbit is the initial speed given it by carrier rocket.
卫星要在其轨道上运行所需要的只是由运载火箭给它的初速度。
3
Most important, China has reached initial operating capability on a "carrier-killer" missile - a cost-effective way of deterring carriers that cost billions to build.