Device for detecting a the direction of a target using a phase difference of via a plurality of channels received radio waves signals

摘要

Device (2a) for detecting a the direction of a target, which by emission and reception of radio waves by means of a plurality of transmitter - and - reception channels is detected, wherein a phase difference between the by way of the transmit - and - reception channels received signals are generated and the direction of the target on the basis of the phase difference is calculated, wherein at least one respective transmitter - and - a receiving antenna (as, ar) is provided in order to the plurality of transmitter - and - reception channels to form, wherein said means comprising:– a the direction of the calculation means (10), which is configured to the direction of the target on the basis of the phase difference of the received signals to calculate, in which it is assumed that the phase difference within a range between + π [wheel] and – π [wheel] is;– a region determining means (10, s210, s220, s240), which is configured, in order to determine that the target in any one of the azimuth angle regions, there is, each of which correspond to a region between (2m – 1) π [wheel] and (2m + 1) π [wheel] is defined, where m is an integer;– a the direction of the correction means (10, s260), which is configured to the direction of the computing means calculated direction in accordance with any one of the region determining means to correct particular result of;– an imaging device (16), is configured for the purpose of a two-dimensional image of a field of view with an angular range to be detected, the wider than the azimuth angle range is, of the range of – π [wheel] to + π [wheel] of the phase difference, and these; and– a distance calculation means (10), which is configured to set a distance of the target on the basis of the transmitted and received radio waves signals to calculate,– the range determining means comprises means: ..