Transmitter - or sensor system to achieve optimized directional characteristic for transmitting - or receiving devices in two or three dimensions

摘要

1. Transmitter - or sensor system to achieve optimized directional characteristic for transmitting - or receiving devices in 2 or 3 dimensions.2.1 In the case of transmitter - and receiving devices which comprise a plurality of transmitter - / sensor elements (for example, microphone / loudspeaker), is the arrangement of the elements it is decisive for its directional. Customary at present are cross -, triangle -, a star - or spiral, they are similar and random optimized arrangements. The new device offers a solution with an optimized weapon, with a minimized number of the sensor elements.2.2 In order to provide a 2 or 3 dimensional transformation field (array) of transmitters or sensors, a good directional characteristic in as far as possible to provide a large frequency range, the occurring distances small enough for the highest and is large enough for be the lowest frequency. When at the same time the number of sensors is to be a minimum, this is in the one-dimensional case with an arrangement as can be realized in a golomb straightedge.In this case, now raster of 2 or 3 golomb straight guides is produced (horizontal and vertical lines in 2) and then further to a few sensor positions (3), until the displacement of the raster there is always only a maximum of a sensor, with a superimposed on the other.Since then in each direction in space the sensors, such as, in a golomb straightedge are arranged, is also located in each direction of an optimized directional club with minimized secondary maxima before.2.3 The arrangement is particularly suitable for microphones and loudspeakers in the acoustics, because there is a large frequency range has to be detected, but can equally be used for the transmitter and the sensors are used on other polarised wave fields. It makes possible the alignment of the reception - / transmitting lobes with a minimum number of elements.