公开(公告)号：US08934556B2

公开(公告)日：2015-01-13

申请号：US13864135

申请日：2013-04-16

Applicant: Raytheon BBN Technologies Corp.

Inventor： Michael Joseph Geile

IPC: H04L5/12 ,  H04L27/36

CPC classification number: H04L27/36 ,  H04L5/0005 ,  H04L25/03834 ,  H04L27/2636

Abstract: Embodiments of a system and method for generating a shaped cyclic time-domain waveform are generally described herein. In some embodiments, a first transform may be performed on an input symbol vector to generate a transformed input vector in a transform domain. The transformed input symbol vector may be expanded to generate an expanded symbol vector. At least some elements of the expanded symbol vector may be weighted with a weighting vector selected for pulse shaping to generate a weighted symbol vector. A second transform may be performed on the weighted symbol vector to generate an output symbol vector for subsequent processing and transmission. The second transform may be an inverse of the first transform and may comprise a greater number of points than the first transform.

Abstract translation: 本文通常描述用于产生成形循环时域波形的系统和方法的实施例。 在一些实施例中，可以对输入符号向量执行第一变换，以在变换域中生成经变换的输入向量。 变换的输入符号向量可以被扩展以生成扩展的符号向量。 扩展符号向量的至少一些元素可以用选择用于脉冲整形的加权矢量加权，以生成加权的符号向量。 可以对加权的符号向量执行第二变换，以生成用于后续处理和传输的输出符号向量。 第二变换可以是第一变换的逆，并且可以包括比第一变换更多的点数。

公开(公告)号：US20140307761A1

公开(公告)日：2014-10-16

申请号：US13864135

申请日：2013-04-16

Applicant: RAYTHEON BBN TECHNOLOGIES CORP.

Inventor： Michael Joseph Geile

IPC: H04L27/36

CPC classification number: H04L27/36 ,  H04L5/0005 ,  H04L25/03834 ,  H04L27/2636

Abstract: Embodiments of a system and method for generating a shaped cyclic time-domain waveform are generally described herein. In some embodiments, a first transform may be performed on an input symbol vector to generate a transformed input vector in a transform domain. The transformed input symbol vector may be expanded to generate an expanded symbol vector. At least some elements of the expanded symbol vector may be weighted with a weighting vector selected for pulse shaping to generate a weighted symbol vector. A second transform may be performed on the weighted symbol vector to generate an output symbol vector for subsequent processing and transmission. The second transform may be an inverse of the first transform and may comprise a greater number of points than the first transform.

Abstract translation: 本文通常描述用于产生成形循环时域波形的系统和方法的实施例。 在一些实施例中，可以对输入符号向量执行第一变换，以在变换域中生成经变换的输入向量。 变换的输入符号向量可以被扩展以生成扩展的符号向量。 扩展符号向量的至少一些元素可以用选择用于脉冲整形的加权矢量加权，以生成加权的符号向量。 可以对加权的符号向量执行第二变换，以生成用于后续处理和传输的输出符号向量。 第二变换可以是第一变换的逆，并且可以包括比第一变换更多的点数。

公开(公告)号：US09964633B1

公开(公告)日：2018-05-08

申请号：US14707120

申请日：2015-05-08

Applicant: Raytheon BBN Technologies Corp.

Inventor： James A. Freebersyser ,  Michael Joseph Geile

IPC: G02F1/01 ,  G01S7/495

CPC classification number: G01S7/495

Abstract: During flight, a military aircraft can use an infrared countermeasures (IRCM) system. The IRCM system can use a wide field of view sensor to detect a spectral signature of a missile and record a coarse estimate of the angular location of the missile. Upon such detection, the IRCM system can trigger a narrow field of view sensor to more finely determine the angular location of the missile. The narrow field of view sensor can emit infrared light toward the missile, which can confuse the guidance system of the missile and can help redirect the missile away from the aircraft. During time intervals when the narrow field of view sensor is not actively locating a missile, the IRCM system can use the narrow field of view sensor to form an infrared communications link with a corresponding narrow field of view sensor of a corresponding IRCM system of another aircraft.

公开(公告)号：US09331885B2

公开(公告)日：2016-05-03

申请号：US13909213

申请日：2013-06-04

Applicant: Raytheon BBN Technologies Corp.

Inventor： Michael Joseph Geile

IPC: H04L27/36 ,  H04L27/34

CPC classification number: H04L27/3444

Abstract: Embodiments of a system and method for providing fundamental group modulation are generally described herein. In some embodiments, a trajectory mapper is arranged to receive a modulation symbol sequence. A signal trajectory sample memory is arranged to store a representation of signal trajectories for a topological space having a set of predetermined removed regions therein. The trajectory mapper accesses the signal trajectory sample memory to select a signal trajectory relative to the set of predetermined removed regions in the topological space based on the received modulation symbol sequence and produces a sequence of in-phase (I) and quadrature (Q) sample values at a specified sample rate in response to the selected signal trajectory, the I and Q sample values serving as a basis for an amplified radio frequency signal.

Abstract translation: 本文通常描述用于提供基本群组调制的系统和方法的实施例。 在一些实施例中，轨迹映射器被布置成接收调制符号序列。 信号轨迹采样存储器被布置成存储对于其中具有一组预定去除区域的拓扑空间的信号轨迹的表示。 基于所接收的调制符号序列，轨迹映射器访问信号轨迹采样存储器以相对于拓扑空间中的预定去除区域集合选择信号轨迹，并产生同相（I）和正交（Q）采样序列 响应于所选择的信号轨迹以指定采样率的值，作为放大射频信号的基础的I和Q采样值。

公开(公告)号：US08923437B2

公开(公告)日：2014-12-30

申请号：US13672915

申请日：2012-11-09

Applicant: Raytheon BBN Technologies Corp.

Inventor： Michael Joseph Geile

IPC: H03C3/00 ,  H04L5/00 ,  H04L27/20

CPC classification number: H04L27/2053 ,  H04L5/0041 ,  H04L27/2017

Abstract: Embodiments of a non-contiguous spectral-band modulator and method for non-contiguous spectral-band modulation are generally described herein. In some embodiments, an input symbol tuple may be mapped to a sequence of phase values. Each value of the sequence of phase values may represent an instantaneous frequency of a waveform for a signal with a power spectral density that is substantially constrained to the two or more subbands of a non-contiguous spectrum. The values of the sequence of phase values may be accumulated and a phase-sample sequence representing phase samples of a transmit waveform may be generated. An exponentiation may be performed on the phase-sample sequence to generate a constant modulus signal sequence. An output signal sequence is generated that is constrained to a region in the complex plane, such as an annulus, when the signal is in a subband. The output signal sequence may be shaped to constrain spectral energy during transitions between subbands.

Abstract translation: 非连续光谱带调制器的实施例和用于非连续光谱带调制的方法在本文中通常被描述。 在一些实施例中，输入符号元组可被映射到一系列相位值。 相位值序列的每个值可以表示具有基本上限制在非连续光谱的两个或多个子带的功率谱密度的信号的波形的瞬时频率。 可以累积相位值序列的值，并且可以生成表示发送波形的相位采样的相位采样序列。 可以对相位采样序列进行取幂以产生恒模信号序列。 当信号处于子带中时，生成被限制到复平面中的区域（例如环形）的输出信号序列。 输出信号序列可以被成形为在子带之间的转换期间约束频谱能量。

公开(公告)号：US20130170584A1

公开(公告)日：2013-07-04

申请号：US13672915

申请日：2012-11-09

Applicant: Raytheon BBN Technologies Corp.

Inventor： Michael Joseph Geile

IPC: H04L27/20

CPC classification number: H04L27/2053 ,  H04L5/0041 ,  H04L27/2017

Abstract: Embodiments of a non-contiguous spectral-band modulator and method for non-contiguous spectral-band modulation are generally described herein. In some embodiments, an input symbol tuple may be mapped to a sequence of phase values. Each value of the sequence of phase values may represent an instantaneous frequency of a waveform for a signal with a power spectral density that is substantially constrained to the two or more subbands of a non-contiguous spectrum. The values of the sequence of phase values may be accumulated and a phase-sample sequence representing phase samples of a transmit waveform may be generated. An exponentiation may be performed on the phase-sample sequence to generate a constant modulus signal sequence. An output signal sequence is generated that is constrained to a region in the complex plane, such as an annulus, when the signal is in a subband. The output signal sequence may be shaped to constrain spectral energy during transitions between subbands.

Abstract translation: 非连续光谱带调制器的实施例和用于非连续光谱带调制的方法在本文中通常被描述。 在一些实施例中，输入符号元组可被映射到一系列相位值。 相位值序列的每个值可以表示具有基本上限制在非连续光谱的两个或多个子带的功率谱密度的信号的波形的瞬时频率。 可以累积相位值序列的值，并且可以生成表示发送波形的相位采样的相位采样序列。 可以对相位采样序列进行取幂以产生恒模信号序列。 当信号处于子带中时，生成被限制到复平面中的区域（例如环形）的输出信号序列。 输出信号序列可以被成形为在子带之间的转换期间约束频谱能量。