| タイトル | An improved digital algorithm for fast amplitude approximations of quadrature pairs |
| 著者（英） | Morris, G. A.; Levitt, B. K. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1977-08-15 |
| 言語 | eng |
| 内容記述 | A computationally fast algorithm for approximating the amplitude (A) of a quadrature pair (I,Q) has been discovered. The piecewise linear formula, the unbiased estimate of A=X+1/8y when X or = 3Y and 7/8X + 1/2Y when X or = 3Y applies where X is congruent to the maximum absolute value of (I,Q) and Y is congruent to the minimum absolute value of (I,Q). This algorithm has been proven to be far more accurate then currently used approximations. An immediate application is the wideband digital spectrum analyzer under development for monitoring radio frequency interference at Deep Space Network stations. |
| NASA分類 | NUMERICAL ANALYSIS |
| レポートNO | 77N31198 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/440544 |
|
