公开(公告)号：US08676147B1

公开(公告)日：2014-03-18

申请号：US13690571

申请日：2012-11-30

申请人： The Aerospace Corporation

发明人： Samuel J. Curry ,  Masahiro Sayano ,  David M. Schwartz ,  Kristine Y. Tsai

IPC分类号： H04B1/16

CPC分类号： H04L7/007 ,  H04L2027/0024 ,  H04L2027/0034

摘要： A detection system includes a receiver configured to generate a receiver signal representative of detected electromagnetic energy, and an analog-to-digital converter (ADC) configured to generate a plurality of signal samples based on the receiver signal. The detection system also includes a detection module configured to identify a plurality of sample offsets for the signal samples, and execute a plurality of autocorrelation functions on the signal samples to provide an output of each of the autocorrelation functions, wherein each autocorrelation function is executed on at least a portion of the signal samples identified by a sample offset of the plurality of sample offsets. The detection module is also configured to compute a sum of the autocorrelation function outputs, normalize the sum of the autocorrelation function outputs, and determine whether a signal of interest is present within the electromagnetic energy based on the normalized sum.

摘要翻译： 检测系统包括被配置为产生表示检测到的电磁能的接收机信号的接收机，以及配置成基于接收机信号产生多个信号采样的模数转换器（ADC）。 所述检测系统还包括检测模块，所述检测模块被配置为识别所述信号样本的多个样本偏移量，并对所述信号样本执行多个自相关函数，以提供每个所述自相关函数的输出，其中每个自相关函数在 所述信号样本的至少一部分由所述多个样本偏移的样本偏移识别。 检测模块还被配置为计算自相关函数输出的和，归一化自相关函数输出的和，并且基于归一化的和来确定在电磁能内是否存在感兴趣的信号。

公开(公告)号：US10312963B2

公开(公告)日：2019-06-04

申请号：US15246295

申请日：2016-08-24

申请人： The Aerospace Corporation

发明人： Masahiro Sayano ,  Michael S. Cheung ,  Oliver D. Ambrosia ,  David M. Schwartz

IPC分类号： H04W4/12 ,  H04B1/715 ,  H04B7/185 ,  H04W84/06 ,  H04B1/7156

摘要： A system comprises a transmitter configured to receive at least one message that corresponds to at least one set of data received from at least one user. The transmitter includes a modulating device that is configured to generate at least one signal that corresponds to the received message, wherein the signal includes at least one sequence of a plurality of hopping patterns. A receiver is coupled to the transmitter, wherein the receiver is configured to receive the signal. The receiver includes a demodulating device that is configured to identify the sequence of the hopping patterns and to determine at least one variable that corresponds to the sequence of the hopping patterns. The demodulating device is further configured to generate at least one output that is based on the determined variable, wherein the output is displayed such that at least one other user is enabled to view the output.