专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20110084879A1 RETRODIRECTIVE TRANSMIT AND RECEIVE RADIO FREQUENCY SYSTEM BASED ON PSEUDORANDOM MODULATED WAVEFORMS 有权
标题翻译：基于PSEUDORANDOR调制波形的反向发射和接收无线电频率系统
公开(公告)号：US20110084879A1
公开(公告)日：2011-04-14
申请号：US11757324
申请日：2007-06-01
申请人： Elliott R. Brown , Rodney F. Sinclair
发明人： Elliott R. Brown , Rodney F. Sinclair
IPC分类号： H01Q1/00
CPC分类号： H01Q3/2647
摘要： Embodiments provide radio-frequency systems that can automatically detect, focus-on, and track objects in the environment without the need for expensive electronic scanning and phase-shifting components. Some embodiments are directed to retrodirective systems including: (1) quiescently broadcast pseudorandom-modulated radiation, such as pseudorandom bit sequences, in the absence of a target, over a field-of-view comparable to the beam solid angle of a single element in the transmit array; (2) a receive antenna element or array, in a desired spatial relationship with respect to the transmit antenna array, that receives reflected pseudorandom radiation from a target; and (3) an electronic signal-processing and feedback channel between the receive and transmit arrays that carries out cross-correlation between the received radiation and the transmitted pseudorandom signals and computes complex correlation coefficients to form a re-transmitted beam. Some embodiments are useful for short-range applications involving small and fast moving targets.
摘要翻译：实施例提供了能够自动检测，聚焦和跟踪环境中的物体而不需要昂贵的电子扫描和相移部件的射频系统。一些实施例涉及逆向系统，包括：（1）在不存在目标的情况下，静态地广播伪随机调制的辐射，诸如伪随机比特序列，可以与单个元素的波束立体角相当发射阵列; （2）接收天线元件或阵列，其以相对于发射天线阵列的期望的空间关系接收来自目标的反射伪随机辐射; 以及（3）接收和发射阵列之间的电子信号处理和反馈信道，其执行所接收的辐射与所发射的伪随机信号之间的互相关，并且计算复相关系数以形成再发射波束。一些实施例对于涉及小型和快速移动目标的短距离应用是有用的。

2. 发明授权

US07944396B2 Retrodirective transmit and receive radio frequency system based on pseudorandom modulated waveforms 有权
标题翻译：基于伪随机调制波形的反向发射和接收射频系统
公开(公告)号：US07944396B2
公开(公告)日：2011-05-17
申请号：US11757324
申请日：2007-06-01
申请人： Elliott R. Brown , Rodney F. Sinclair
发明人： Elliott R. Brown , Rodney F. Sinclair
IPC分类号： H01Q1/00
CPC分类号： H01Q3/2647
摘要： Embodiments provide radio-frequency systems that can automatically detect, focus-on, and track objects in the environment without the need for expensive electronic scanning and phase-shifting components. Some embodiments are directed to retrodirective systems including: (1) quiescently broadcast pseudorandom-modulated radiation, such as pseudorandom bit sequences, in the absence of a target, over a field-of-view comparable to the beam solid angle of a single element in the transmit array; (2) a receive antenna element or array, in a desired spatial relationship with respect to the transmit antenna array, that receives reflected pseudorandom radiation from a target; and (3) an electronic signal-processing and feedback channel between the receive and transmit arrays that carries out cross-correlation between the received radiation and the transmitted pseudorandom signals and computes complex correlation coefficients to form a re-transmitted beam. Some embodiments are useful for short-range applications involving small and fast moving targets.
摘要翻译：实施例提供了能够自动检测，聚焦和跟踪环境中的物体而不需要昂贵的电子扫描和相移部件的射频系统。一些实施例涉及逆向系统，其包括：（1）在不存在目标的情况下，静态地广播伪随机调制的辐射，诸如伪随机比特序列，在视场中相当于单个元素的波束立体角发射阵列; （2）接收天线元件或阵列，其以相对于发射天线阵列的期望的空间关系接收来自目标的反射伪随机辐射; 以及（3）接收和发射阵列之间的电子信号处理和反馈信道，其执行所接收的辐射与所发射的伪随机信号之间的互相关，并且计算复相关系数以形成再发射波束。一些实施例对于涉及小型和快速移动目标的短距离应用是有用的。

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