专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明专利

CA2803451A1 HIGH POWER WAVEGUIDE CLUSTER CIRCULATOR 未知
公开(公告)号：CA2803451A1
公开(公告)日：2012-10-18
申请号：CA2803451
申请日：2012-02-17
申请人： RAYTHEON CANADA LTD
发明人： CATOIU MIRON
IPC分类号： H01P1/30 , H01P1/39
摘要： A waveguide circulator includes a waveguide junction made from a thermally conductive material and having three ports, and a ferrite cluster housed within the waveguide junction so as to be in communication with the ports. The ferrite cluster includes a plurality of ferrite segments extending from a central point of the ferrite cluster. Each ferrite segment is spaced apart from an adjacent ferrite segments by a gap. Thermal spacers made of a thermally conductive material are disposed in the gaps. Each thermal spacer is thermally coupled to the adjacent ferrite segments and the waveguide junction so as to conduct heat away from the adjacent ferrite segments to the waveguide junction. The ferrite cluster can also be used with other junction circulators including stripline junction circulators designed for high peak power applications.

82. 发明专利

ES2369862T3 DETECTOR DE BLANCOS MOVILES PARA SISTEMAS DE RADAR. 未知
公开(公告)号：ES2369862T3
公开(公告)日：2011-12-07
申请号：ES07872195
申请日：2007-11-01
申请人： RAYTHEON CANADA LTD
发明人： WANG JIAN , BROOKNER ELI
IPC分类号： G01S13/524
摘要： Detector de blancos móviles (108, 108) para procesar datos de entrada con el fin de proporcionar datos de detección, comprendiendo el detector de blancos móviles: un módulo de bancos de filtros Doppler (110) para procesar los datos de entrada con el fin de proporcionar varias salidas Doppler par a una celda de distancia actual y un intervalo de procesado coherente; un multiplexor de líneas de distancia (142) para proporcionar los datos de detección; caracterizado porque comprende una vía de procesado de señales de ecos parásitos terrestres (118) para proporcionar unos primeros resultados de detección basados en las diversas salidas Doppler a través de varios intervalos de procesado coherentes con el fin de proporcionar una capacidad de detección de blancos en varias condiciones de los ecos parásitos; una vía de procesado de señales de ecos parásitos no terrestres (120) para proporcionar unos segundos resultados de detección basados en las diversas salidas Doppler a través de varios intervalos de procesado coherentes con el fin de proporcionar una detección de blancos mejorada en distancias lejanas con ausencia de ecos parásitos terrestres; un módulo lógico de conmutación (114) para seleccionar una de la vía de procesado de señales de ecos parásitos terrestres (118) y la vía de procesado de señales de ecos parásitos no terrestres (120) basándose en información de ecos parásitos, y en el que el multiplexor de líneas de distancia combina los primeros y los segundos resultados de detección a través de una pluralidad de celdas de distancia para proporcionar los datos de detección.

83. 发明专利

CA2668264A1 LINEARIZING TECHNIQUE FOR POWER AMPLIFIERS 未知
公开(公告)号：CA2668264A1
公开(公告)日：2009-12-05
申请号：CA2668264
申请日：2009-06-04
申请人： RAYTHEON CANADA LTD
发明人： MCKERRACHER RICHARD , CATOIU MIRON
IPC分类号： H03G3/20 , G01S7/03 , H03G1/04 , H04B1/04
摘要： Embodiments described herein relate to amplification circuits. In some embodiments the amplification circuit includes a power amplifier, a feedforward error compensation loop, and phase feedback and amplitude feedback error compensation loops nested within the feedforward loop. The two nested feedback loops provide a "pre-cleaning" action, which reduces the amount of rejection required in the feedforward loop. In some embodiments, the amplification circuit includes a power amplifier and an enhanced feedforward loop comprising a phase control circuit that maintains a phase balance neede d to reduce distortion in the output signal of the amplification circuit. In some embodiments, the amplification circuit includes a power amplifier, a feedforward error compensation loop, and phase feedback and amplitude feedback error compensation loops nested within the feedforward loop and the feedforward lo op comprises the phase control circuit.

84. 发明专利

CA2478816C SYSTEM AND METHOD FOR SPECTRAL GENERATION IN RADAR 未知
公开(公告)号：CA2478816C
公开(公告)日：2008-08-05
申请号：CA2478816
申请日：2003-03-07
申请人： RAYTHEON CANADA LTD
发明人： PONSFORD TONY , DIZAJI REZA
IPC分类号： G01S3/74 , G01S7/292 , G01S7/32 , G01S13/524
摘要： This invention relates to a spectral generator and a spectral generation method for receiving pre-processed range-doppler-sensor data and generating at least one noise-reduced high-resolution spectrum therefrom. The spectral generator comprises a window generator that generates a window which defines a plurality of range-doppler cells. The spectral generator further comprises a covariance matrix calculator that is in communication with the window generator to receive the range-doppler-sensor data within the window and calculate a covariance matrix estimate for a range-doppler cell of interest in the window. The spectral generator also includes a spectral calculator that is in communication with the covariance matrix calculator to calculate a high-resolution spectral vector based on a location matrix and a noise subspace matrix estimate.

85. 发明专利

AU2007201638A1 A track quality based multi-target tracker 未知
公开(公告)号：AU2007201638A1
公开(公告)日：2008-05-29
申请号：AU2007201638
申请日：2007-04-13
申请人： RAYTHEON CANADA LTD
发明人： SINHA ABHIJIT , FAROOQ MOHAMAD , DING ZHEN , KIRUBARAJAN THIA
IPC分类号： G01S13/66 , G01S13/00 , G01S15/00 , G01S15/66

86. 发明专利

CA2593436A1 DUAL BEAM RADAR SYSTEM 未知
公开(公告)号：CA2593436A1
公开(公告)日：2008-05-09
申请号：CA2593436
申请日：2007-07-11
申请人： RAYTHEON CANADA LTD
发明人： HUBBARD OLIVER HUGH , WANG JIAN
IPC分类号： G01S7/41 , G01S13/534 , G01S13/86 , G01S13/91
摘要： Various embodiments are described herein relating to a radar system and associated methods for detecting targets in the presence of certain types of clutter. The radar system generally comprises hardware operatively configured to obtain first and second sets of radar return signa ls concurrently, first circuitry operatively configured to detect targets in th e first and second sets of radar return signals, and second circuitry operatively configured to identify detected targets due to clutter.

87. 发明专利

DE60309748D1 未知
公开(公告)号：DE60309748D1
公开(公告)日：2006-12-28
申请号：DE60309748
申请日：2003-03-07
申请人： RAYTHEON CANADA LTD
发明人： PONSFORD TONY , DIZAJI REZA
IPC分类号： G01S13/524 , G01S3/74 , G01S7/292 , G01S7/32
摘要： This invention relates to a spectral generator and a spectral generation method for receiving pre-processed range-doppler-sensor data and generating at least one noise-reduced high-resolution spectrum therefrom. The spectral generator comprises a window generator that generates a window which defines a plurality of range-doppler cells. The spectral generator further comprises a covariance matrix calculator that is in communication with the window generator to receive the range-doppler-sensor data within the window and calculate a covariance matrix estimate for a range-doppler cell of interest in the window. The spectral generator also includes a spectral calculator that is in communication with the covariance matrix calculator to calculate a high-resolution spectral vector based on a location matrix and a noise subspace matrix estimate.

88. 发明专利

AT345511T 未知
公开(公告)号：AT345511T
公开(公告)日：2006-12-15
申请号：AT05076364
申请日：2003-03-07
申请人： RAYTHEON CANADA LTD
发明人： PONSFORD TONY , DIZAJI REZA
IPC分类号： G01S3/74 , G01S7/292 , G01S7/32 , G01S13/524
摘要： This invention relates to a spectral generator and a spectral generation method for receiving pre-processed range-doppler-sensor data and generating at least one noise-reduced high-resolution spectrum therefrom. The spectral generator comprises a window generator that generates a window which defines a plurality of range-doppler cells. The spectral generator further comprises a covariance matrix calculator that is in communication with the window generator to receive the range-doppler-sensor data within the window and calculate a covariance matrix estimate for a range-doppler cell of interest in the window. The spectral generator also includes a spectral calculator that is in communication with the covariance matrix calculator to calculate a high-resolution spectral vector based on a location matrix and a noise subspace matrix estimate.

89. 发明专利

CA2603315A1 A CLASSIFICATION SYSTEM FOR RADAR AND SONAR APPLICATIONS 未知
公开(公告)号：CA2603315A1
公开(公告)日：2006-10-19
申请号：CA2603315
申请日：2006-04-11
申请人： RAYTHEON CANADA LTD
发明人： DIZAJI REZA M , GHADAKI HAMID
IPC分类号： G01S7/41 , G01S13/87

90. 发明专利

DK1485731T3 未知
公开(公告)号：DK1485731T3
公开(公告)日：2006-08-21
申请号：DK03716352
申请日：2003-03-07
申请人： RAYTHEON CANADA LTD
发明人： PONSFORD TONY , DIZAJI REZA
IPC分类号： G01S13/524 , G01S3/74 , G01S7/292 , G01S7/32
摘要： This invention relates to a spectral generator and a spectral generation method for receiving pre-processed range-doppler-sensor data and generating at least one noise-reduced high-resolution spectrum therefrom. The spectral generator comprises a window generator that generates a window which defines a plurality of range-doppler cells. The spectral generator further comprises a covariance matrix calculator that is in communication with the window generator to receive the range-doppler-sensor data within the window and calculate a covariance matrix estimate for a range-doppler cell of interest in the window. The spectral generator also includes a spectral calculator that is in communication with the covariance matrix calculator to calculate a high-resolution spectral vector based on a location matrix and a noise subspace matrix estimate.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式