-
公开(公告)号：US20210343167A1
公开(公告)日：2021-11-04
申请号：US17377089
申请日：2021-07-15
申请人： Timothy Just
发明人： Timothy Just
IPC分类号： G08G5/00 , G01S3/20 , G01S3/26 , G01S3/04 , G01S5/04 , G01S11/02 , G01S11/04 , H01Q1/42 , H01Q3/06 , H01Q3/08 , H01Q21/28 , H04B17/27 , H04B17/318
摘要： Disclosed are examples of systems, apparatus, methods and computer program products for locating unmanned aerial vehicles (UAVs). A region of airspace may be scanned with two scanning apparatuses. Each scanning apparatus may include one or more directional Radio Frequency (RF) antennae. The two scanning apparatuses may have different locations. Radio frequency signals emitted by a UAV can be received at each of the two scanning apparatuses. The received radio frequency signals can be processed to determine a first location of the UAV.
-
公开(公告)号：US10852384B2
公开(公告)日：2020-12-01
申请号：US15885128
申请日：2018-01-31
发明人： Daniel Allnutt , Daniel Longo
摘要： A device and method for detecting presence of a wireless communication device having an antenna with intrinsic characteristics includes a transmitter, a receiver, a memory element, and a processing element. The transmitter may send a first signal to the antenna of the wireless communication device. The receiver may receive a second signal from the antenna of the wireless communication device, the second signal being a first portion of the first signal that is reflected by the antenna based on intrinsic characteristics of the antenna. The memory element may store intrinsic characteristic information for the antenna. The processing element may determine presence of the wireless communication device by analyzing the second signal against the intrinsic characteristic information stored in the memory element.
-
公开(公告)号：US20200265729A1
公开(公告)日：2020-08-20
申请号：US16852034
申请日：2020-04-17
申请人： Timothy Just
发明人： Timothy Just
IPC分类号： G08G5/00 , H04B17/318 , H04B17/27 , H01Q21/28 , H01Q3/08 , H01Q3/06 , H01Q1/42 , G01S11/04 , G01S11/02 , G01S5/04 , G01S3/04 , G01S3/26 , G01S3/20
摘要： Disclosed are examples of systems, apparatus, methods and computer program products for locating unmanned aerial vehicles (UAVs). A region of airspace may be scanned with two scanning apparatuses. Each scanning apparatus may include one or more directional Radio Frequency (RF) antennae. The two scanning apparatuses may have different locations. Radio frequency signals emitted by a UAV can be received at each of the two scanning apparatuses. The received radio frequency signals can be processed to determine a first location of the UAV.
-
公开(公告)号：US20200096595A1
公开(公告)日：2020-03-26
申请号：US16580032
申请日：2019-09-24
发明人： Takaaki KISHIGAMI
摘要： Radar receiver calculates a first reception power in each of a predetermined number of beam directions by using a reflected wave signal in a first cell among a plurality of cells into which a region represented by at least one of a distance component and a Doppler frequency component is divided, calculates a second reception power on the basis of reception powers of reception array antennae by using the reflected wave signal in a peripheral cell of the first cell among the plurality of cells, and determines whether or not a target is present in the first cell on the basis of a comparison result between the first reception power and a first threshold value that is a value obtained by multiplying the second reception power by a first coefficient.
-
5.发明授权公开(公告)号：US10116893B1
公开(公告)日：2018-10-30
申请号：US15611022
申请日：2017-06-01
申请人： Higher Ground LLC
摘要： A communication device, having an antenna, determines a direction substantially in a direction to an intended transceiver. A desired direction that is different from the direction to the intended transceiver, and an anticipated direction that is offset from the desired direction, are determined. Based on the desired direction, parameters of expected energy values corresponding to a multiple pre-defined antenna directions of the antenna around the desired direction are determined. The communication device receives, using the antenna, multiple measured energy values corresponding to multiple antenna directions of the antenna around the anticipated direction. A directional offset is calculated using the multiple expected energy parameters and the multiple measured energy values. An updated anticipated direction is generated by updating the anticipated direction using the calculated directional offset. Steps of receiving measured energy values through generating an updated anticipated direction are repeated using the updated anticipated direction as the anticipated direction.
-
6.发明授权Apparatus and method for determining relative direction of a wireless peer device from another device 有权用于从另一设备确定无线对等设备的相对方向的装置和方法公开(公告)号：US09166289B2
公开(公告)日：2015-10-20
申请号：US13421576
申请日：2012-03-15
申请人： Thomas A. Donaldson
发明人： Thomas A. Donaldson
CPC分类号： H01Q3/2611 , G01S3/20 , H01Q21/061 , H04W16/28
摘要： Systems, apparatuses, devices, and methods for wireless communications. An antenna in which nulls or directions of reduced performance can be selectively introduced is provided, and the performance of a communication link to a wireless communication device is monitored. By correlating the selectively reduced sensitivity of the antenna with reductions in the communication link performance, the direction of the wireless communication device may be estimated. Embodiments of the present invention may be used in numerous applications, such as cell phones, PDA's, and laptops.
摘要翻译： 用于无线通信的系统，设备，设备和方法。 提供了一种天线，其中可以选择性地引入降低性能的零点或方向，并且监视到无线通信设备的通信链路的性能。 通过将天线的选择性降低的灵敏度与通信链路性能的降低相关联，可以估计无线通信设备的方向。 本发明的实施例可以用于诸如手机，PDA和膝上型计算机的许多应用中。
-
7.发明授权Wireless communication device, wireless communication system, and method for detecting interference direction 有权无线通信装置，无线通信系统以及检测干扰方向的方法公开(公告)号：US09130633B2
公开(公告)日：2015-09-08
申请号：US13430758
申请日：2012-03-27
申请人： Teppei Oyama
发明人： Teppei Oyama
CPC分类号： H04B7/0695 , G01S3/20 , H04W16/28
摘要： There is provided a wireless communication device includes a transmitter configured to transmit a known signal in each of a plurality of first directions different from each other, a receiver configured to receive a plurality of first reflected waves, each of the plurality of first reflected waves being generated by the known signal transmitted in each of the plurality of first directions and to detect each of a plurality of first reception intensities, each of the plurality of first reception intensities being associated with each of the plurality of first reflected waves; and a controller configured to determine a transmission direction of a radio signal addressed to a first wireless terminal, based on the plurality of first reception intensities and to control the transmitter to transmit the radio signal in the transmission direction.
摘要翻译： 提供了一种无线通信装置，包括：发送机，被配置为在彼此不同的多个第一方向中的每一个中发送已知信号;接收器，被配置为接收多个第一反射波，所述多个第一反射波中的每一个是 通过在多个第一方向中的每一个中发送的已知信号产生，并且检测多个第一接收强度中的每一个，所述多个第一接收强度中的每一个与所述多个第一反射波中的每一个相关联; 以及控制器，被配置为基于所述多个第一接收强度来确定寻址到第一无线终端的无线电信号的传输方向，并且控制所述发射机在所述传输方向上发送所述无线电信号。
-
公开(公告)号：US4135191A
公开(公告)日：1979-01-16
申请号：US805676
申请日：1977-06-13
申请人： Joseph J. Sawicki
发明人： Joseph J. Sawicki
摘要： A coherent demodulator for recovering the phase modulation from an input intermediate frequency signal includes a phase locked loop having switchable frequency and phase detectors. During initial acquisition the phase locked loop frequency is adjusted to be equal to the input intermediate frequency by comparing the loop frequency with the input frequency in the frequency detector and using the resulting error signal to adjust the loop frequency. After acquisition the phase detector maintains the loop frequency phase locked to the input frequency by now using the resulting error signal to adjust loop frequency phase, the error signal from the phase detector being the recovered phase modulation. A second control loop includes a narrow pass filter tuned to the desired frequency of the loop frequency. The error signal from the second loop is summed with the first mentioned error signal to precisely maintain loop frequency.
摘要翻译： 用于从输入中频信号恢复相位调制的相干解调器包括具有可切换频率和相位检测器的锁相环。 在初始采集期间，通过将环路频率与频率检测器中的输入频率进行比较，并使用得到的误差信号调节环路频率，将锁相环频率调整为等于输入中频。 在采集之后，相位检测器通过现在使用所得到的误差信号来调节环路频率相位来保持环路频率锁相到输入频率，来自相位检测器的误差信号是恢复的相位调制。 第二控制回路包括调谐到所需频率的循环频率的窄通滤波器。 来自第二回路的误差信号与首先提到的误差信号相加，以精确地保持回路频率。
-
公开(公告)号：US3987446A
公开(公告)日：1976-10-19
申请号：US301477
申请日：1972-10-27
申请人： Stephen Lipsky , Kevin Redmond , Harry Zacharia
发明人： Stephen Lipsky , Kevin Redmond , Harry Zacharia
IPC分类号： G01S3/20
CPC分类号： G01S3/20
摘要： The present invention refers to a system intended to locate the direction of a source of electromagnetic radiation and is particularly applicable to radar detection receivers such as those employed in aircraft. This system is capable of performing the direction finding function independent of pulse to pulse variation while using a minimum number of receiving channels, one such channel being used for sequential lobing and the other functioning to normalize the detected sequential lobing signals.
摘要翻译： 本发明涉及一种旨在定位电磁辐射源的方向的系统，并且特别适用于诸如飞行器中使用的雷达检测接收机。 该系统能够在使用最小数量的接收通道的同时执行独立于脉冲到脉冲变化的测向功能，一个这样的通道用于顺序的跳动，另一个功能用于对检测到的顺序波动信号进行归一化。
-
公开(公告)号：US11411310B2
公开(公告)日：2022-08-09
申请号：US15540640
申请日：2017-06-02
发明人： Fredrik Athley , Andreas Nilsson , Sven Petersson
摘要： Mechanisms for determining an electrical phase relation between antenna elements in an antenna array. A method is performed by a radio transceiver device. The method comprises obtaining measurements of the radio signal as received in two receive beams covering a given angular sector. The two receive beams have different complex beam patterns. The method further comprises estimating the angle of arrival of the radio signal for at least one polarization port of each of the two receive beams using the measurements in the two receive beams. The method also comprises determining, from the angle of arrival estimated for each polarization port, an electrical phase relation between antenna elements in the antenna array that corresponds to the estimated angle of arrival.
-
-
-
-
-
-
-
-
-
搜索结果
58 条记录 (耗时 0.015 秒)
