| 摘要 |
<p>The method involves using an emitting device which sends a sequence of optical impulses during a measuring cycle, and a receiving device which receives reflected signals from a target located in the beam path of the emitting device. The emitted impulse sequences are divided into a number of impulse packets or bursts which are separated by impulse absorption. A received impulse assigned to a target is detected in an electronic computer by means of defined algorithms. The method involves using an emitting device which sends a sequence of optical impulses during a measuring cycle. A receiving device receives reflected signals from a target located in the beam path of the emitting device. The receiving device amplifies received signals in a signal processing step. The signals are eventually converted and digitized, whereby the individual samples of a digitized received signal are filed in cells of an electronic memory and the samples of other digitized received signals are added in a co-phase manner in these memory cells or with a defined phase displacement with regard to the emitter impulse. The emitted impulse sequences are divided into a number of impulse packets or bursts. These bursts are separated by impulse absorption. A received impulse assigned to a target is detected in an electronic computer by means of defined algorithms which are each from the discrete-time, digitized and added received signals of the impulse of every burst. In addition, a distance value is calculated in the electronic computer from the running time of this reconstructed received impulse with regard to a pertaining start impulse. At the end of a measuring cycle, a velocity value for a target is calculated, produced and/or displayed from the number of distance values and the assigned measuring times. Independent claims are included for an optoelectronic measuring device, and more specifically an optoelectronic velocity measuring method.</p> |
