Method for measuring the distance and velocity of objects
First Claim
Patent Images
1. A method for measuring the distance Si and the velocity Vri of objects employing electromagnetic waves, comprising the steps of:
- a) modulating a frequency of an emitted signal;
b) receiving signals during at least one rise and at least one drop in the frequency of the emitted signal;
c) mixing the signals received in step (b) with the emitted signal to form intermediate-frequency signals;
d) spectrally analyzing the intermediate-frequency signals resulting from the mixing to determine frequencies corresponding to spectral lines; and
e) calculating the distance Si and the velocity Vr,i of at least one of the objects from the frequencies of the spectral lines of the intermediate-frequency signals during at least one rise and at least one drop in the frequency of the emitted signal,wherein the intermediate-frequency signals are spectrally analyzed within a frequency range of approximately 0 to 300 kHz.
1 Assignment
0 Petitions
Accused Products
Abstract
In a method for measuring the distance and the velocity of objects employing electromagnetic waves, the frequency of an emitted signal is modulated. The signals received during one rise and one drop in the frequency of the emitted signal are mixed with the emitted signal. The intermediate-frequency signals resulting from the mixing are then spectrally analyzed. The distance and the velocity of at least one object are calculated from the frequency of the spectral lines of the intermediate-frequency signals during at least one rise and at least one drop in the frequency of the emitted signal.
46 Citations
5 Claims
-
1. A method for measuring the distance Si and the velocity Vri of objects employing electromagnetic waves, comprising the steps of:
-
a) modulating a frequency of an emitted signal; b) receiving signals during at least one rise and at least one drop in the frequency of the emitted signal; c) mixing the signals received in step (b) with the emitted signal to form intermediate-frequency signals; d) spectrally analyzing the intermediate-frequency signals resulting from the mixing to determine frequencies corresponding to spectral lines; and e) calculating the distance Si and the velocity Vr,i of at least one of the objects from the frequencies of the spectral lines of the intermediate-frequency signals during at least one rise and at least one drop in the frequency of the emitted signal, wherein the intermediate-frequency signals are spectrally analyzed within a frequency range of approximately 0 to 300 kHz. - View Dependent Claims (2, 3, 4, 5)
-
Specification