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8674880 Method of determining the direction of arrival of a high-frequency electromagnetic wave  
A method of measuring the direction of arrival θ of radio signals in the HF band received by a crossed loop antenna includes, in a preparatory calibration phase, acquiring and recording the ...
8674879 Antenna arrangement for DOA estimation  
An antenna arrangement including at least two antenna functions arranged to cover a certain angular sector, each antenna function comprising a corresponding antenna port. The antenna arrangement is...
8531601 Image processing apparatus and control method  
This invention enables reduction of moving blurring in a hold-type display device and reduce flicker in an impulse-type display device, and also enables to suppress distortion such as ghost or...
7999739 1D or 2D goniometry method of diffuse sources  
A goniometry method for one or several diffuse (or distributed) sources is disclosed. The sources or sources having one or more give directions and a diffusion cone. The sources are received by an...
7952521 Multiparametric direction finding method comprising the separation of the incidence and nuisance parameters  
Method of multi-parameter direction finding of several sources in an array of N sensors, comprising at least the following steps: a) choosing a parameter to be determined, or parameter of interest,...
6876692 System for code division multi-access communication  
According to the present invention a received Direct Sequence Code Division Multi-Access (DS-CDMA) signal is differentially decoded at the chip level. A number of signaling schemes can be used in...
6744407 Method and device for space-time estimation of one or more transmitters  
Method and device for space-time estimation of one or more transmitters based on signals received using an antenna network. Signals received using the antenna network are separated in order to...
6469666 Digital antenna goniometer and method  
A digital goniometer and steering method are provided which may be used, in a preferred embodiment, for producing a figure-eight antenna reception pattern oriented at any selectable angle. The...
6239746 Radiogoniometry method and device co-operating in transmission  
A process and device related to multisensor radio direction finding receivers usable in radio communication systems including several emission sources. The process and device isolate the...
5812092 Radiocommunications and localizing device  
A radiocommunications and localization device of the type comprising an array of antennas coupled respectively to a goniometer device and a radio receiver delivering phonic signals to an operator...
5030959 Enhanced automatic bearing indicator system  
An improved apparatus and method for radio direction finding is set forth, the generic function of which is that of an "automatic bearing indicator" (ABI). The technique and apparatus are intended...
4903032 Method and device for protection against a jammer in a radio station comprising several change-over antennas and their use for the making of radiogoniometers  
The method consists in the step of masking the energy influence of the aliased spectrum of a jammer received in the useful band of each of the reception channels of a radio station during a...
4654664 Electronic null-seeking goniometer for ADF  
Described herein is a system providing an electronic null-seeking goniometer for use in automatic direction finding equipment. A microprocessor is used to generate sine and cosine information in...
4573053 Automatic direction finder  
An automatic direction finder capable of measuring a direction with a higher accuracy is disclosed. In an initial measurement, loop antennas and a vertical antenna are used in a conventional...
4368470 Radio direction finder  
A radio direction finder, which is designed to determine the direction of arrival of a radio wave by causing the rotation of a directional antenna arrangement or a goniometer, to which the output...
3816833 AIRCRAFT ADF WITH DIGITAL FREQUENCY DISPLAY AND TIMER  
An automatic direction finder for air navigation systems has an electronic pulse counting system with a frequency mode for providing a digital display of the frequency to which the radio is tuned...
3553590 ELECTRONIC GONIOMETER  
3453626 ACOUSTIC GONIOMETER  
3381297 Wide-band goniometer system  
3329954 Eight loop antenna system and method of scanning same  
3047862 Radio direction finders  
2885672 Harmonic suppression in goniometers  
2871476 Direction finder  
2840813 Radio direction finder  
2807801 Means for reducing leakage inductance in magnetic antennas  
Matches 1 - 25 out of 25