Then after amplitude limiting, to be preamplified, demodulated, bandpass filtered, the doppler frequency shift signal is extracted. 经过限幅保护，接收放大，检波和带通滤波后，将多普勒频移信号提取出来。
Then we study the methods of image analysis and data analysis in order to extract the hybridizing intensity and retrieve the biological information. 然后从图像分析和数据分析两方面研究了影响芯片分析的因素，实现了对杂交荧光图像的信号提取和基本的生物信息分析。
