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1. 发明申请

WO2011121338A1 PROJECTILE DETECTION SYSTEM 审中-公开
标题翻译： PROJECTILE检测系统
公开(公告)号：WO2011121338A1
公开(公告)日：2011-10-06
申请号：PCT/GB2011/050606
申请日：2011-03-25
申请人： BAE SYSTEMS PLC , GOULD, Dale Martin , HENDERSON, Robert Ian , SHEPHARD, David John , WRIGHT, Barbara Helen
发明人： GOULD, Dale Martin , HENDERSON, Robert Ian , SHEPHARD, David John , WRIGHT, Barbara Helen
IPC分类号： G01S7/35 , G01S13/58 , G01S13/66
CPC分类号： G01S7/35 , G01S13/44 , G01S13/449 , G01S13/583 , G01S13/66 , H01Q3/2658 , H01Q19/17 , H01Q25/007
摘要： A projectile detection system, and method of detecting a projectile (for example a bullet), for use on a vehicle (100) (for example a helicopter), the projectile detection system comprising: a radar antenna array (4) arranged to transmit and receive microwave signals so as to provide a plurality of detection segments (40, 42, 44, 46) of a volume of airspace (38); one or more processors (3) arranged to: determine which segments (40, 42, 44, 46) microwave signals reflected by a projectile (10) are received from; determine timing information relating to a time order in which the received microwave signals are received; and determine directional information relating to a direction of travel of the projectile (10) using the determined segments (40, 42, 44, 46) and the determined timing information; wherein the microwave signals have a frequency between 1GHz and 30GHz.
摘要翻译：射弹检测系统和检测用于车辆（100）（例如直升机）的弹丸（例如，子弹））的方法，所述射弹检测系统包括：雷达天线阵列（4）接收微波信号以便提供一定数量的空域（38）的检测段（40,42,44,46）; 一个或多个处理器（3）被布置为：确定从弹药（10）反射的哪些段（40,42,44,46）反射的微波信号; 确定与接收到的微波信号的时间顺序有关的定时信息; 并使用所确定的段（40,42,44,46）和所确定的定时信息来确定与射弹（10）的行进方向有关的方向信息; 其中微波信号具有在1GHz和30GHz之间的频率。

2. 发明申请

WO2011107801A1 SAMPLING 审中-公开
标题翻译：采样
公开(公告)号：WO2011107801A1
公开(公告)日：2011-09-09
申请号：PCT/GB2011/050418
申请日：2011-03-02
申请人： BAE SYSTEMS PLC , GOULD, Dale Martin
发明人： GOULD, Dale Martin
IPC分类号： H03M1/12 , G01R23/00
CPC分类号： H03M1/1245 , G01R19/2509 , H03M1/1215
摘要： A method and apparatus for performing sampling, comprising: sampling an input signal (16) using a first sampling signal (22) to provide a first sampled signal (26); sampling the input signal (16) using a second sampling signal (24) to provide a second sampled signal (30); measuring a frequency of one of the first sampled signal (26) and second sampled signal (30); measuring a phase difference between the first and the second sampled signal (26, 30); and determining an input signal frequency using the frequency and the phase difference;wherein the second sampling signal (24) has substantially equal frequency to the first sampling signal (22); and a waveform of the second sampling signal (24) is shifted in time with respect to a waveform of the first sampling signal (22).Measuring a frequency of the first or second sampled signal may be performed within a Nyquist zone of an analogue-to-digital converter (12, 14).
摘要翻译：一种用于执行采样的方法和装置，包括：使用第一采样信号（22）对输入信号（16）进行采样以提供第一采样信号（26）; 使用第二采样信号（24）对输入信号（16）进行采样以提供第二采样信号（30）; 测量第一采样信号（26）和第二采样信号（30）之一的频率; 测量所述第一和第二采样信号（26,30）之间的相位差; 以及使用所述频率和所述相位差来确定输入信号频率;其中所述第二采样信号（24）具有与所述第一采样信号（22）基本相等的频率; 并且所述第二采样信号（24）的波形相对于所述第一采样信号（22）的波形在时间上移动。测量所述第一或第二采样信号的频率可以在模拟 - 数字转换器（12,14）。

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