signal view
5.Because images (video signal) are visible, recordable and carrying lots of information, Through CCTV system you can take an over view of the whole situation, and have extremely high accuracy on affairs judging, and it is an effective way for check and alert, dynamically surveillance, procedure control and information record.
9.In view of the non stationary feature of the pressure difference fluctuation signal in the gas-liquid two phase flow, a flow pattern identification method was proposed based on the characteristic vector from the singular value of the matrix formed by the multi dimensional continuous wavelet transform values of the fluctuation signal.
10.From this view, the thesis takes the audio signal as the main object to overcome. The audio signal has first been condensed and coded using ADPCM technology, and then has been disposed using streaming media technology from two aspects, which are coding format and transmission control. The proportion of condensation is 1/24, and it is perfect.

