公开(公告)号：US07570711B1

公开(公告)日：2009-08-04

申请号：US10414931

申请日：2003-04-16

申请人： Carlos J. Chavez ,  Gunther B. Frank ,  Dennis L. Hoffman

发明人： Carlos J. Chavez ,  Gunther B. Frank ,  Dennis L. Hoffman

IPC分类号： H04L27/36

CPC分类号： H04L27/362 ,  H03F1/0294 ,  H03F2200/336

摘要： A quadrature LINC transmission system processes a baseband input signal for transmission as a linearly amplified RF signal. An in-phase LINC element processes an in-phase baseband signal into an in-phase RF signal. A quadrature LINC element processes a quadrature baseband signal into a quadrature RF signal. An output combiner combines the in-phase RF signal with the quadrature RF signal to provide the linearly amplified RF signal. The in-phase LINC element has a constant envelope decomposition block for decomposing the in-phase baseband signal into in-phase baseband constant envelope components. Two up-converters convert the in-phase baseband constant envelope components to in-phase RF constant envelope components. Two non-linear amplifiers amplify the in-phase RF constant envelope components. A combiner combines the amplified in-phase RF constant envelope components to yield the in-phase RF signal. The quadrature LINC element is similar to the in-phase LINC element and provides the quadrature RF signal.

摘要翻译： 正交LINC传输系统处理用于传输的基带输入信号作为线性放大的RF信号。 同相LINC元件将同相基带信号处理成同相RF信号。 正交LINC元件将正交基带信号处理成正交RF信号。 输出组合器将同相RF信号与正交RF信号组合以提供线性放大的RF信号。 同相LINC元件具有用于将同相基带信号分解为同相基带恒定包络分量的恒定包络分解块。 两个上变频器将同相基带恒包络分量转换为同相RF恒包络分量。 两个非线性放大器放大同相RF恒定包络分量。 组合器组合放大的同相RF恒定包络分量以产生同相RF信号。 正交LINC元件类似于同相LINC元件，并提供正交RF信号。

公开(公告)号：US09118437B1

公开(公告)日：2015-08-25

申请号：US13899979

申请日：2013-05-22

申请人： Timothy E. Snodgrass ,  Eric O. Zuber ,  Dennis L. Hoffman

发明人： Timothy E. Snodgrass ,  Eric O. Zuber ,  Dennis L. Hoffman

IPC分类号： H04K3/00

CPC分类号： H04K3/228 ,  H04K3/28 ,  H04K2203/32

摘要： The present invention includes providing a multidirectional antenna unit including a plurality of directional antenna elements configured to spatially segment an operational theatre into a plurality of segmented regions, receiving radio frequency signals via the plurality of directional antenna elements from the plurality of segmented region, identifying a directional antenna element having the highest signal-to-jamming ratio, and connecting the directional antenna element having the highest signal-to-jamming ratio to a multifunction information distribution system terminal.

摘要翻译： 本发明包括提供一种多向天线单元，包括多个定向天线元件，其被配置为将操作影院空间分割成多个分段区域，经由多个定向天线元件从多个分段区域接收射频信号，识别一个 具有最高信号与干扰比的定向天线元件，并将具有最高信号与干扰比的定向天线元件连接到多功能信息分配系统终端。

公开(公告)号：US08391416B1

公开(公告)日：2013-03-05

申请号：US12536234

申请日：2009-08-05

申请人： Timothy E. Snodgrass ,  Dennis L. Hoffman

发明人： Timothy E. Snodgrass ,  Dennis L. Hoffman

IPC分类号： H03K9/00 ,  H04L7/00

CPC分类号： H04J1/065

摘要： A system may include a receiver having a number of reception channels spread across an instantaneous radio frequency bandwidth, each one of the reception channels for receiving a different radio frequency within the instantaneous radio frequency bandwidth. The system may also include control programming for positioning the receiver on one of a number of synchronization frequencies transmitting a synchronization preamble, where a number of reception channels is less than a number of synchronization frequencies, and a probability of not receiving one or more of the synchronization frequencies is smaller than a required message error rate for receiving the plurality of synchronization frequencies.

摘要翻译： 系统可以包括具有在瞬时无线电频率带宽上分布的多个接收信道的接收机，每个接收信道用于在瞬时射频带宽内接收不同的射频。 该系统还可以包括用于将接收机定位在发送同步前导码的多个同步频率之一上的控制编程，其中多个接收信道小于多个同步频率，以及不接收一个或多个 同步频率小于用于接收多个同步频率的所需消息错误率。