| 1. | The first one references the principle and methods of small aperture beam technique . the sr measurement of aero - flow medium which fit the quasi - frozen - flow assumption was analyzed . the second measurement the deflection of s - h sensor ’ sub - aperture wave - front , according to spectrum calculation , sr can be gotten also
特别注意在实践中具有操作意义的关键方法:设置一定阈值电平后,背景电平和读出噪声的影响可以降低,从而提高质心探测精度,在实践中可以找出一个最佳阈值。 |
