Arrangement for recognizing obstacles for pilots of low-flying aircraft
AssigneeSiemens Aktiengesellschaft
InventorsLudger Grage, Wolfgang Kranz
Life of this patent
Estimating the term…
Abstract
An arrangement working according to the laser radar principle comprises a pulsed laser range finder (LEM) for scanning a given field of view and for the pictorial presentation of the course of a perceived obstacle for the pilot on a display, whereby a respective array of semiconductor laser diodes or, respectively, of receiving detectors is provided as a transmitter and as a receiver of the laser range finder and the scanning of the field of view occurs with a mesh network-like pattern. As a result of these measures, the expense for the individual components of the arrangement is minimized and a simple, compact structure is achieved. The arrangement is suitable for obstacle warning for aircraft, particularly for low-flying helicopters.
Claims28
In an arrangement for recognizing obstacles for pilots of low-flying aircraft, of the type having a pulsed laser range finder including a transmitter and a receiver for scanning a given field of view and a display, the improvement comprising:
- said transmitter being formed by a plurality semiconductor laser diodes arranged in an array and means for operating said semiconductor laser diodes for establishing a scanned field of view of focused laser pulses from said semiconductor laser diodes in a coarse grid having a mesh-like scan pattern;
- said receiver being formed by a plurality of receiving detectors arranged in an array and means for operating said receiving detectors to receive reflections of the laser pulses and to generate received signals corresponding thereto;
- and
- means for generating a representation on said display, from said received signals, of the course of a recognized obstacle in said scanned field of view.
Dependencies are inferred from the claim text.