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1. 发明申请

US20110187586A1 RADAR DETECTION METHOD, NOTABLY FOR AIRBORNE RADARS IMPLEMENTING AN OBSTACLE DETECTION AND AVOIDANCE FUNCTION 有权
标题翻译：雷达检测方法，AIRBORNE RADARS实施异常检测和避免功能
公开(公告)号：US20110187586A1
公开(公告)日：2011-08-04
申请号：US12969929
申请日：2010-12-16
申请人： Pascal CORNIC , Patrick LE BIHAN , Stéphane KEMKEMIAN
发明人： Pascal CORNIC , Patrick LE BIHAN , Stéphane KEMKEMIAN
IPC分类号： G01S13/00
CPC分类号： G01S13/9303 , G01S7/352 , G01S13/343 , G01S13/584 , G01S2007/356
摘要： A method includes: generating a frequency-modulated continuous signal, an emission sequence being formed of successive ramps centred on a carrier frequency; fixing a modulation band ΔF and the duration Tr of a recurrence in such a way that at the range limit, a reception ramp appears shifted by at least one given frequency with respect to the corresponding emission ramp, on account of the propagation delay for the outward-return journey to a target kTr+θ, k being an integer and θ a duration less than Tr; demodulating the signal received by the signal emitted, the resulting signal including a first sinusoid at the frequency δFdim=(1−(θ/Tr)·ΔF and a second sinusoid at the frequency δFd=(θ/Tr)·ΔF; sampling the resulting signal and performing a first fast Fourier transformation on this resulting signal over the duration of each emission ramp; detecting in the resulting spectrum the spectral lines appearing at the frequencies δFd and δFdim, and performing the vector sum of these two spectral lines after resetting them into phase with respect to one another; and performing a detection by comparing the modulus of the vector sum with a predetermined threshold.
摘要翻译：一种方法包括：产生调频连续信号，发射序列由以载波频率为中心的连续斜坡形成; 固定调制频带＆Dgr; F和持续时间Tr，使得在限幅范围内，接收斜坡相对于相应的发射斜坡出现偏移至少一个给定的频率，这是由于传播延迟向目标转移到目标kTr +＆thetas; k为整数，＆thetas; 持续时间小于Tr; 解调由所发射的信号接收到的信号，所得到的信号包括频率为δFdim=（1-（＆amp; t）; / Tr）·＆Dgr; F的第一正弦波，频率为δFd=（＆amp; ＆D; F;对所得到的信号进行采样，并在每个发射斜坡的持续时间内对该结果信号执行第一快速傅立叶变换;在所得到的频谱中检测出现在频率δFd和δFdim处的频谱线，并执行这些矢量和在将它们复位成相对于彼此相位之后的两个谱线;以及通过将矢量和的模量与预定阈值进行比较来执行检测。

2. 发明申请

US20110140952A1 AIRBORNE RADAR HAVING A WIDE ANGULAR COVERAGE, NOTABLY FOR THE SENSE-AND-AVOID FUNCTION 有权
标题翻译：具有广泛角度覆盖的AIRBORNE雷达，用于感知和避免功能
公开(公告)号：US20110140952A1
公开(公告)日：2011-06-16
申请号：US12881230
申请日：2010-09-14
申请人： Stéphane KEMKEMIAN , Pascal CORNIC , Patrick LE BIHAN , Myriam NOUVEL-FIANI
发明人： Stéphane KEMKEMIAN , Pascal CORNIC , Patrick LE BIHAN , Myriam NOUVEL-FIANI
IPC分类号： G01S13/42
CPC分类号： G01S13/426 , G01S13/72 , G01S13/9303 , G01S2013/0254
摘要： An airborne radar device having a given angular coverage in elevation and in azimuth includes a transmit system, a receive system and processing means for carrying out target detection and location measurements. The transmit system includes: a transmit antenna made up of at least a first linear array of radiating elements focusing a transmit beam, said arrays being approximately parallel to one another; at least one waveform generator; means for amplifying the transmit signals produced by the waveform generator or generators; and means for controlling the transmit signals produced by the waveform generator or generators, said control means feeding each radiating element with a transmit signal. The radiating elements being controlled for simultaneously carrying out electronic scanning of the transmit beam in elevation and for coloured transmission in elevation.
摘要翻译：具有高程和方位角的给定角度覆盖的机载雷达装置包括发射系统，接收系统和用于执行目标检测和位置测量的处理装置。发射系统包括：发射天线，由至少第一线阵列辐射元件组成，辐射元件聚焦发射束，所述阵列彼此大致平行; 至少一个波形发生器; 用于放大由波形发生器或发生器产生的发射信号的装置; 以及用于控制由波形发生器或发生器产生的发射信号的装置，所述控制装置为每个辐射元件馈送发射信号。被控制的辐射元件同时进行高度的发射光束的电子扫描和高程的彩色透射。

3. 发明申请

US20120081247A1 RADAR WITH WIDE ANGULAR COVERAGE, NOTABLY FOR THE OBSTACLE AVOIDANCE FUNCTION ON BOARD AUTO-PILOTED AIRCRAFT 有权
标题翻译：雷达具有宽角度覆盖，不适用于板上自动起飞飞机上的障碍物避免功能
公开(公告)号：US20120081247A1
公开(公告)日：2012-04-05
申请号：US13247118
申请日：2011-09-28
申请人： Stephane KEMKEMIAN , Pascal CORNIC , Patrick GARREC , Patrick LE BIHAN , Myriam NOUVEL-FIANI
发明人： Stephane KEMKEMIAN , Pascal CORNIC , Patrick GARREC , Patrick LE BIHAN , Myriam NOUVEL-FIANI
IPC分类号： G01S13/93
CPC分类号： G01S13/9303 , G01S13/4463 , H01Q1/28 , H01Q3/2605 , H01Q3/267
摘要： A radar includes a transmitting antenna and receiving antenna formed by an array of radiant elements. Antenna beams are calculated in P directions by a BFC function. Detections of a target by secondary lobes of the beams are processed by an algorithm comparing levels received in a distance-speed resolution cell, a single detection at most not being possible for each distance-speed resolution cell. Processing means use the assumption that there may probably be more than one echo with a signal-to-noise ratio that is sufficient to be detectable, for a given resolution cell of the radar, either in speed mode or in distance mode, or, alternatively, a distance-speed depending on the processing implemented; and, if there is more than one echo detectable for each resolution cell out of the plurality of beams formed by BFC, only the echo and BFC that obtain maximum power or maximum signal-to-noise ratio are/is considered valid.
摘要翻译：雷达包括由辐射元件阵列形成的发射天线和接收天线。通过BFC功能在P方向上计算天线波束。通过比较在距离速度分辨率单元中接收到的等级的算法来处理由所述波束的次级波瓣检测的目标的检测，对于每个距离速度分辨率单元最多不能进行单个检测。处理手段使用以下假设：对于雷达的给定分辨率单元，无论是在速度模式还是在距离模式下，可能存在多于一个具有足够可检测的信噪比的回波，或者，或者，取决于所执行的处理的距离速度; 并且如果由BFC形成的多个波束中的每个分辨率单元存在多于一个的回波，则只有获得最大功率或最大信噪比的回波和BFC被认为是有效的。

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