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1. 发明授权

US06486827B2 Sparse frequency waveform radar system and method 有权
标题翻译：稀疏频率波形雷达系统及方法
公开(公告)号：US06486827B2
公开(公告)日：2002-11-26
申请号：US09837679
申请日：2001-04-18
申请人： James G. Small
发明人： James G. Small
IPC分类号： G01S7282
CPC分类号： G01S7/36 , G01S7/28 , G01S13/106 , G01S13/24
摘要： A radar for locating and tracking objects based on the use of a pulsed waveform, each pulse of the pulsed waveform being made up of a plurality of spectral components having different frequencies, including an antenna. The radar further includes a transmitter operatively coupled to the antenna for generating the plurality of spectral components that make up each pulse of the pulsed waveform and a receiver operatively coupled to the antenna for receiving signals at the frequencies of the plurality of spectral components. The radar also includes a signal processor operatively coupled to the receiver for processing the received signals in order to generate and output a radar presentation and to detect the presence of other signals at particular frequencies, a display operatively coupled to the signal processor for displaying the radar presentation, and finally a controller operatively coupled to the transmitter and the signal processor for varying the frequencies at which the plurality of spectral components are generated, such that the transmitter generates spectral components at frequencies different from the frequencies of other signals detected by the signal processor.
摘要翻译：基于使用脉冲波形来定位和跟踪物体的雷达，脉冲波形的每个脉冲由具有不同频率的多个频谱分量组成，包括天线。雷达还包括可操作地耦合到天线的发射机，用于产生组成脉冲波形的每个脉冲的多个频谱分量，以及可操作地耦合到天线的接收机，用于接收多个频谱分量的频率处的信号。雷达还包括可操作地耦合到接收器的信号处理器，用于处理所接收的信号，以便产生和输出雷达显示并且检测特定频率处的其它信号的存在，操作地耦合到信号处理器的显示器的显示器呈现，最后是可操作地耦合到发射机和信号处理器的控制器，用于改变生成多个频谱分量的频率，使得发射机产生频率分量，其频率不同于由信号处理器检测到的其它信号的频率。

2. 发明授权

US06392588B1 Multifrequency signal structure for radar systems 失效
标题翻译：雷达系统的多频信号结构
公开(公告)号：US06392588B1
公开(公告)日：2002-05-21
申请号：US09564650
申请日：2000-05-03
申请人： Nadav Levanon
发明人： Nadav Levanon
IPC分类号： G01S7282
CPC分类号： G01S13/288
摘要： A multifrequency phase-coded signal structure is presented for use in a system like a radar or sonar or detecting a remote target. The signal structure comprises at least one pulse signal in the form of a mutually complementary set of M sequences, each sequence being composed of M phase-modulated bits. Each two adjacent sequences are modulated on subcarriers separated by a frequency fs such that fs=1/tb, tb being a bit duration, and a the subcarriers are transmitted simultaneously.
摘要翻译：提供了多频相位编码信号结构，用于诸如雷达或声纳的系统或检测远程目标。该信号结构包括M个序列的相互互补集合形式的至少一个脉冲信号，每个序列由M个相位调制比特组成。每两个相邻序列在由频率fs分离的子载波上进行调制，使得fs = 1 / tb，tb为比特持续时间，并且副载波同时传输。

3. 发明授权

US06184817B2 Master frequency generator 有权
标题翻译：主频率发生器
公开(公告)号：US06184817B2
公开(公告)日：2001-02-06
申请号：US09379642
申请日：1999-08-23
申请人： Michael Koechlin
发明人： Michael Koechlin
IPC分类号： G01S7282
CPC分类号： H03B21/025 , H03B21/02
摘要： A system is provided for generating multiple frequencies in a specified frequency band, with a specified step size between frequencies, in which the spectral purity of the frequencies is assured. The switching speed between frequencies is very fast, limited only by the speed of the switches used. In one embodiment, only five tones are generated as the base for the rest of the synthesis, in which the relationship of the five tones is f0+/−⅛f0 and +/−{fraction (1/16)}f0. The subject system may be utilized in air defense systems for generating the transmit channels to be able to permit a missile seeker to transmit a signal at the appropriate frequency. In one embodiment, spectral purity is achieved by providing a number of stages of up converting, expanding, and dividing down of an input signal.
摘要翻译：提供一种用于在指定频带中产生多个频率的系统，其中频率之间具有指定的步长，其中确保频率的频谱纯度。频率之间的切换速度非常快，仅受所用开关的速度的限制。在一个实施例中，仅生成五个音调作为合成的其余部分的基础，其中五个音调的关系为f0 +/-⅛f0和+/- {分数（1/16）} f0。该主题系统可以用于防空系统中，用于产生能够允许导弹探测器以适当频率发射信号的发射信道。在一个实施例中，通过提供输入信号的上转换，扩展和分频的多个级来实现频谱纯度。

4. 发明授权

US06342851B1 Method and arrangement for duty cycle enlargement 有权
标题翻译：占空比扩大的方法和布置
公开(公告)号：US06342851B1
公开(公告)日：2002-01-29
申请号：US09388606
申请日：1999-09-02
申请人： Bengt Andersson
发明人： Bengt Andersson
IPC分类号： G01S7282
CPC分类号： G01S7/282 , G01S2013/0254
摘要： The duty cycle of a pulse train from a pulse radar antenna is increased by dividing the antenna aperture into sub-apertures (1-5), generating separate pulse trains from said sub-apertures (1-5), and time shifting the separate pulse trains between themselves to produce a resulting pulse train having shorter pulse spacing or wider pulses.
摘要翻译：脉冲雷达天线的脉冲序列的占空比通过将天线孔径分成子孔径（1-5）而增加，从所述子孔径（1-5）产生分离的脉冲序列，并且使分离的脉冲在它们之间列车以产生具有较短脉冲间隔或较宽脉冲的所得脉冲序列。

5. 发明授权

US06281835B1 Radar transmitter 有权
标题翻译：雷达发射机
公开(公告)号：US06281835B1
公开(公告)日：2001-08-28
申请号：US09485720
申请日：2000-03-02
申请人： Ingen Adri Mast , Koenraad Wieringa
发明人： Ingen Adri Mast , Koenraad Wieringa
IPC分类号： G01S7282
CPC分类号： H03F3/211
摘要： The invention relates to solid-state radar transmitter, comprising a number of amplifier modules (4.i). To prevent the trailing edge of a steer pulse supplied to the radar transmitter from becoming too steep when passing the amplifier modules (4.i) driven in saturation, the supply voltage on at least One amplifier state in each amplifier module (4.i) is switched off just before the end of the steer pulse.
摘要翻译：本发明涉及固态雷达发射机，其包括多个放大器模块（4.i）。为了防止在通过饱和驱动的放大器模块（4.i）时提供给雷达发射机的转向脉冲的后沿变得太陡峭，每个放大器模块（4.i）中的至少一个放大器状态的电源电压，在转向脉冲结束之前关闭。

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