Signal processing system and method
A signal processing and signal processor technology, which is applied in the components of TV systems, image communication, TV, etc., can solve the problems of lack of accuracy and the sensing signal is easily affected by the outside world, and achieve the goal of improving reliability and accuracy Effect
Inactive Publication Date: 2009-12-30
ASIA OPTICAL CO INC
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[0004] Therefore, the technical problem to be solved by the present invention is to provide a method that can improve the reliability and accuracy of the data detected by the sensor in view of the defect that the sensing signal detected by the sensor in the prior art is easily affected by the outside world and lacks accuracy. Signal processing system and method for
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[0032] Please refer to figure 1 , is a schematic diagram of a signal processing system according to an embodiment of the present invention. The signal processing system 100 is used for signal processing the sensing signal GS and the first approximate offset signal OS1 to obtain a second approximate offset signal OS2, wherein the second approximate offset signal OS2 is offset from the first approximate offset signal The signal OS1 is closer to the actual offset signal M in the sensing signal GS, and the first approximate offset signal OS1 is a hypothetical offset signal estimated from experimental results, and its mathematical expression is:
[0033] M(1-e -kt )+I·e -kt (a)
[0034] Where M represents the actual offset signal in the sensing signal GS, I represents the preset offset signal for signal processing in the signal processing system 100, k represents a constant value, especially a convergence coefficient greater than zero, and t represents a time variable .
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The invention relates to a signal processing system and a method. The method includes steps that signal processing is carried out to sensing signals and a first approximate shifted signal so as to obtain a second approximate shifted signal. The system comprises a first signal processor and a second signal processor; the first signal processor is used for receiving and processing the sensing signals and the first approximate shifted signal so as to output a first calculating signal; the second signal processor is used for processing the first calculating signal so as to output a second calculating signal; and the second calculating signal is added by a preset shifted signal so as to obtain the second approximate shifted signal, wherein, compared with the first approximate shifted signal, the second approximate shifted signal is closer to the actual shifted signal in the sensing signals.
Description
technical field [0001] The invention relates to a signal processing system and method. Background technique [0002] In a general camera device, a sensor is usually used to continuously detect the movement of the camera device, so as to obtain a sensing signal, and perform a compensation operation on the camera device according to the sensing signal, so that the camera device can maintain stability and allow users to The captured image quality remains good. [0003] However, most sensors usually have the effect of temperature drift; that is, the sensor will affect the output sensing signal due to changes in the environment or temperature, so that the sensing signal not only includes the detected data signal, but also Have a different offset signal as the environment or temperature changes. Therefore, when the environment or temperature changes, even if the sensor has the same setting, the output sensing signal will be deviated due to the different environment or temperatur...
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IPC IPC(8): H04N5/232H04N5/14
Inventor 李佑庭廖崑期
Owner ASIA OPTICAL CO INC