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1. 发明申请

US20050179585A1 ULTRA-WIDEBAND RADAR SYSTEM USING SUB-BAND CODED PULSES 有权
标题翻译：超声波雷达系统使用子带编码脉冲
公开(公告)号：US20050179585A1
公开(公告)日：2005-08-18
申请号：US10851635
申请日：2004-05-21
申请人： Michael Walker , David Furuno , Naiel Askar , Gerald Rogerson
发明人： Michael Walker , David Furuno , Naiel Askar , Gerald Rogerson
IPC分类号： G01S20060101 , G01S7/28 , G01S13/00 , G01S13/02 , G01S13/28
CPC分类号： G01S13/284 , G01S13/0209 , G01S13/282
摘要： Methods and apparatus are provided for radar systems using multiple pulses that are shorter than the expected range delay extent of the target to be imaged. In one implementation, a method for performing radar includes the steps of: transmitting a plurality of pulses, each pulse having a different center frequency and a time duration shorter than an expected range delay extent of a target, wherein a total bandwidth is defined by a bandwidth occupied by the plurality of pulses; receiving reflections of the plurality of pulses; and performing pulse compression on the received pulse reflections to generate a detection signal having a radar resolution approximately equivalent to the transmission and reception of a single pulse having the total bandwidth. In preferred form, the pulses comprise ultrawideband (UWB) pulses each occupying a sub-band of the overall system bandwidth.
摘要翻译：为使用比要成像的目标的预期范围延迟范围短的多个脉冲的雷达系统提供方法和装置。在一个实施方式中，执行雷达的方法包括以下步骤：发送多个脉冲，每个脉冲具有与目标的预期范围延迟范围不同的中心频率和持续时间，其中总带宽由多个脉冲占用的带宽; 接收多个脉冲的反射; 并对所接收的脉冲反射进行脉冲压缩，以生成雷达分辨率近似等于具有总带宽的单个脉冲的发送和接收的检测信号。在优选形式中，脉冲包括每个占据整个系统带宽的子带的超宽带（UWB）脉冲。

2. 发明申请

US20050043931A1 Interference reduction by step function removal 审中-公开
标题翻译：通过逐步功能去除干扰减少
公开(公告)号：US20050043931A1
公开(公告)日：2005-02-24
申请号：US10958473
申请日：2004-10-04
申请人： Stuart Golden , Naiel Askar
发明人： Stuart Golden , Naiel Askar
IPC分类号： G06F7/60 , G06F15/00 , H04B15/00 , H04L25/06
CPC分类号： H04L25/061
摘要： Correcting a signal offset may include observing a finite duration signal yn that comprises a representation of a mixture of a desired signal and an undesired signal. The undesired signal may include an offset component which may be modeled as comprising a step function u defined by unknown step function parameters. The unknown step function parameters may be estimated using, for example, a maximum likelihood method. Thereafter, yn may be corrected based on the estimated step function parameters.
摘要翻译：校正信号偏移可以包括观察包括期望信号和非期望信号的混合的表示的有限持续时间信号yn。不期望的信号可以包括偏移分量，该偏移分量可以被建模为包括由未知步长函数参数定义的阶跃函数u。可以使用例如最大似然法来估计未知的步骤功能参数。此后，可以基于估计的步骤功能参数来校正yn。

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