论文部分内容阅读
目前,彩色电视摄象机中普遍采用了晶体管开关型行扫描电路,对其行扫描电流的非线性失真多数采用“饱和电感”及引入”预失真电流”等方法来校正.这些方法在某种程度上改善了线性,但效果尚不够理想.如引入预失真电流后,校正电流为抛物状,仅抵消指数型电流中二次谐波分量,信号中残存三次谐波等高次
At present, the color TV camera commonly used in the transistor switch-type scanning circuit, the line scan current nonlinear distortion most of the “saturation inductance” and the introduction of “pre-distortion current” and other methods to correct these methods in a The degree of improvement of the linear, but the effect is not yet ideal.If the introduction of pre-distortion current, the correction current is parabolic, only to offset the second harmonic component of the exponential current, the signal remaining in the third harmonic