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1. 发明申请

US20100254300A1 LEVERAGING COHERENT DISTRIBUTED SPACE-TIME CODES FOR NONCOHERENT COMMUNICATION IN RELAY NETWORKS VIA TRAINING 有权
标题翻译：在继电器网络中通过培训利用相关的分布式空间时间码
公开(公告)号：US20100254300A1
公开(公告)日：2010-10-07
申请号：US12419430
申请日：2009-04-07
申请人： Susinder Rajan GULASEKARAN , Balaji SUNDAR RAJAN
发明人： Susinder Rajan GULASEKARAN , Balaji SUNDAR RAJAN
IPC分类号： H04B7/14
CPC分类号： H04B7/155 , H04B7/2606
摘要： In a training cycle, a source node transmits at least one pilot symbol to relay nodes in a training cycle. The relay nodes each amplifies and forwards the pilot symbol to a destination node in an assigned time slot in the training cycle. The destination node sequentially receives multiple versions of the pilot symbol from the relay nodes and estimates channel information based on the multiple versions of the pilot symbol. In data transmission cycles that follow the training cycle, the nodes apply coherent distributed space-time block code (DSTBC) with the estimated channel information to communicate data symbols. The power allocation between training and data cycles may be adjusted to improve the error performance. The nodes may also apply orthogonal frequency division multiplexing (OFDM) based DSTBC when timing errors are not known.
摘要翻译：在训练周期中，源节点在训练周期中向中继节点发送至少一个导频符号。中继节点每个在训练周期中的指定时隙中放大并转发导频符号到目标节点。目的地节点从中继节点顺序地接收导频符号的多个版本，并基于导频符号的多个版本来估计信道信息。在训练周期之后的数据传输周期中，节点将相干分布空时块码（DSTBC）与所估计的信道信息一起应用以传送数据符号。可以调整训练和数据循环之间的功率分配，以改善误差性能。当定时误差未知时，节点还可以应用基于正交频分复用（OFDM）的DSTBC。

2. 发明授权

US08831155B2 Radar detection method and system using low-resolution FFTS 有权
标题翻译：雷达检测方法和系统采用低分辨率FFTS
公开(公告)号：US08831155B2
公开(公告)日：2014-09-09
申请号：US13479210
申请日：2012-05-23
申请人： Tevfik Yucek , Kai Shi , Susinder Rajan Gulasekaran , Richard Melvin Mosko, Jr.
发明人： Tevfik Yucek , Kai Shi , Susinder Rajan Gulasekaran , Richard Melvin Mosko, Jr.
IPC分类号： H04L27/08
CPC分类号： G01S7/021 , H04K3/226 , H04K3/822 , H04K2203/18 , H04L27/2633
摘要： A method of identifying radar in a wireless device includes detecting an event corresponding to receipt of a signal by the wireless device. The event can include an analog to digital converter (ADC) saturation, a radio frequency (RF) saturation, and/or an ADC power high condition. Notably, the gain change in the wireless device is delayed for a first predetermined time period. Data preceding the event for the first predetermined time period can be buffered. A first low-resolution fast Fourier transform (FFT), wherein low-resolution FFTs are referred to as short FFTs, can be performed with the buffered data. The first short FFT can be processed. When results of the processing indicate the signal is radar, the radar can then be identified.
摘要翻译：一种在无线设备中识别雷达的方法包括：检测与无线设备接收的信号相对应的事件。该事件可以包括模数转换器（ADC）饱和，射频（RF）饱和和/或ADC功率高电平状态。值得注意的是，无线设备中的增益改变延迟了第一预定时间段。可以缓冲在第一预定时间段之前的事件之前的数据。可以使用缓冲的数据来执行第一低分辨率快速傅里叶变换（FFT），其中低分辨率FFT被称为短FFT。可以处理第一个短FFT。当处理结果表明信号是雷达时，可以识别雷达。

3. 发明授权

US08089916B2 Leveraging coherent distributed space-time codes for noncoherent communication in relay networks via training 有权
标题翻译：利用相干的分布式时空代码，用于通过培训在中继网络中进行非相干通信
公开(公告)号：US08089916B2
公开(公告)日：2012-01-03
申请号：US12419430
申请日：2009-04-07
申请人： Susinder Rajan Gulasekaran , Balaji Sundar Rajan
发明人： Susinder Rajan Gulasekaran , Balaji Sundar Rajan
IPC分类号： H04B7/14
CPC分类号： H04B7/155 , H04B7/2606
摘要： In a training cycle, a source node transmits at least one pilot symbol to relay nodes in a training cycle. The relay nodes each amplifies and forwards the pilot symbol to a destination node in an assigned time slot in the training cycle. The destination node sequentially receives multiple versions of the pilot symbol from the relay nodes and estimates channel information based on the multiple versions of the pilot symbol. In data transmission cycles that follow the training cycle, the nodes apply coherent distributed space-time block code (DSTBC) with the estimated channel information to communicate data symbols. The power allocation between training and data cycles may be adjusted to improve the error performance. The nodes may also apply orthogonal frequency division multiplexing (OFDM) based DSTBC when timing errors are not known.
摘要翻译：在训练周期中，源节点在训练周期中向中继节点发送至少一个导频符号。中继节点每个在训练周期中的指定时隙中放大并转发导频符号到目标节点。目的地节点从中继节点顺序地接收导频符号的多个版本，并基于导频符号的多个版本来估计信道信息。在训练周期之后的数据传输周期中，节点将相干分布空时块码（DSTBC）与所估计的信道信息一起应用以传送数据符号。可以调整训练和数据循环之间的功率分配，以改善误差性能。当定时误差未知时，节点还可以应用基于正交频分复用（OFDM）的DSTBC。

4. 发明申请

US20130170586A1 Radar Detection Method And System Using Low-Resolution FFTS 有权
标题翻译：雷达检测方法及系统采用低分辨率FFTS
公开(公告)号：US20130170586A1
公开(公告)日：2013-07-04
申请号：US13479210
申请日：2012-05-23
申请人： Tevfik Yucek , Kai Shi , Susinder Rajan Gulasekaran , Richard Melvin Mosko, JR.
发明人： Tevfik Yucek , Kai Shi , Susinder Rajan Gulasekaran , Richard Melvin Mosko, JR.
IPC分类号： H04L27/00 , H04B1/06
CPC分类号： G01S7/021 , H04K3/226 , H04K3/822 , H04K2203/18 , H04L27/2633
摘要： A method of identifying radar in a wireless device includes detecting an event corresponding to receipt of a signal by the wireless device. The event can include an analog to digital converter (ADC) saturation, a radio frequency (RF) saturation, and/or an ADC power high condition. Notably, the gain change in the wireless device is delayed for a first predetermined time period. Data preceding the event for the first predetermined time period can be buffered. A first low-resolution fast Fourier transform (FFT), wherein low-resolution FFTs are referred to as short FFTs, can be performed with the buffered data. The first short FFT can be processed. When results of the processing indicate the signal is radar, the radar can then be identified.
摘要翻译：一种在无线设备中识别雷达的方法包括：检测与无线设备接收的信号相对应的事件。该事件可以包括模数转换器（ADC）饱和，射频（RF）饱和和/或ADC功率高电平状态。值得注意的是，无线设备中的增益改变延迟了第一预定时间段。可以缓冲在第一预定时间段之前的事件之前的数据。可以使用缓冲的数据来执行第一低分辨率快速傅里叶变换（FFT），其中低分辨率FFT被称为短FFT。可以处理第一个短FFT。当处理结果表明信号是雷达时，可以识别雷达。

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