| 摘要 |
PURPOSE:To improve accuracy by adding a correction value to a tidal value according to variation in the speed of a moving body to obtain the final tidal value. CONSTITUTION:It is assumed that a frequency variation detector takes t0hr to detect signals with a pulse amplitude P, a pulse width T and a frequency f0. Then, where the frequency changes by f0+DELTAf, equations (1) and (2) hold between the true speed Vo and the detected speed Vi when the time delay coefficient is represented by (r). In the equation, B represents constant. The speed Vo is as shown by the equation (3). The true speed can be calculated by multiplying the variation in speed detected by a coefficient (k). |
