公开(公告)号：WO2014171973A1

公开(公告)日：2014-10-23

申请号：PCT/US2013/070076

申请日：2013-11-14

Applicant: COMTECH EF DATA CORP.

Inventor： PENG, Lianfeng

IPC: H04B1/7156

CPC classification number: H04B1/7073 ,  H04B1/709

Abstract: A method of detecting FN code synchronization for a DSSS signal comprising receiving a DSSS data signal of data frames comprised of I and Q symbols, at least a portion of each data frame comprising a unique word, demodulating the data signal into I and Q chip samples, filtering the I and Q chip samples and outputting the filtered I and Q chip samples to a chip stream controller which outputs the plurality of chip streams to a correlation matrix that correlates the plurality of chip streams with the chipped unique word and outputs a correlated data stream, A plurality of FFTs is run on the correlated output data stream and a processor searches for a maximum frequency bin power of each FF'T. A PN synchronization detector searches for a maximum frequency bin power among the plurality of FFT runs and determines whether PN synchronization is present.

Abstract translation: 一种检测DSSS信号的FN码同步的方法，包括接收由I和Q符号组成的数据帧的DSSS数据信号，每个数据帧的至少一部分包括唯一字，将数据信号解调为I和Q码片样本 对I和Q芯片样本进行滤波并将滤波后的I和Q码片样本输出到芯片流控制器，芯片流控制器将多个芯片流输出到相关矩阵，该相关矩阵将多个芯片流与切片唯一字相关，并输出相关数据 在相关输出数据流上运行多个FFT，并且处理器搜索每个FF'T的最大频率仓功率。 PN同步检测器在多个FFT运行中搜索最大频率箱功率，并确定是否存在PN同步。

公开(公告)号：WO2013116557A1

公开(公告)日：2013-08-08

申请号：PCT/US2013/024207

申请日：2013-01-31

Applicant: COMTECH EF DATA CORP.

Inventor： BEELER, Michael ,  BADDICK, John ,  DAVIS, Wallace

IPC: H04L12/26 ,  H04W24/00 ,  G06F17/00

CPC classification number: H04W16/22 ,  H04L41/145 ,  H04W24/02

Abstract: Methods of dynamically modeling performance of a communications network that may include modeling a communications network using a processor by performing a link budget analysis (LBA) for a configuration of the communications network, receiving a plurality of layers of real-time information about the communications network, iteratively performing additional LBAs using one or more of the layers of real-time information from among the plurality of layers of real-time information, multi-dimensionally co-modeling a matrix comprising results of the iteratively performed additional LBAs, and determining one or more final communications network configuration parameters based on the multi- dimensionally co-modeled matrix.

Abstract translation: 对通信网络的性能进行动态建模的方法，其可以包括通过对通信网络的配置执行链路预算分析（LBA）来使用处理器建模通信网络，接收关于通信网络的多个实时信息层 使用所述多个实时信息层中的一个或多个实时信息层迭代地执行附加的LBA，对包括迭代执行的附加LBA的结果的矩阵进行多维共同建模，以及确定一个或多个 基于多维共模型矩阵的更多最终通信网络配置参数。

公开(公告)号：WO2013055820A1

公开(公告)日：2013-04-18

申请号：PCT/US2012/059598

申请日：2012-10-10

Applicant: COMTECH EF DATA CORP.

Inventor： DAVIS, Wallace ,  BEELER, Michael

IPC: H04J3/16 ,  H04L29/00

CPC classification number: H04L5/0046 ,  H04B7/18528 ,  H04L1/0003 ,  H04L1/0009 ,  H04L2001/0097

Abstract: A method of maintaining a data rate of a telecommunications link that involves, in a particular embodiment, modulating a carrier signal, encoding the carrier signal, and dynamically controlling a bandwidth of the carrier signal by changing a symbol rate of the carrier signal such that a data rate of the carrier signal remains substantially equal to a predetermined data rate when the carrier signal is transmitted to a remote receiver.

Abstract translation: 一种保持电信链路的数据速率的方法，在一个具体实施例中涉及调制载波信号，编码载波信号，以及通过改变载波信号的符号率来动态地控制载波信号的带宽，使得 当载波信号被发送到远程接收机时，载波信号的数据速率保持基本上等于预定的数据速率。

公开(公告)号：US09374161B2

公开(公告)日：2016-06-21

申请号：US14263888

申请日：2014-04-28

Applicant: Comtech EF Data Corp.

Inventor： Michael Beeler ,  Vasile Manea ,  Joshua Bolick

IPC: H04B10/118 ,  H04B7/185

CPC classification number: H04B10/118 ,  H04B7/18513 ,  H04B7/18519

Abstract: A method of optimizing a link budget analysis comprising performing a first LBA based on a target modulation and coding pair (MODCOD), the MODCOD having a symbol energy to noise density ratio (Es/No), a target setting of a power amplifier, or a target antenna size, determining an excess margin and increasing or decreasing a maximum available MODCOD accordingly, iteratively performing a second LBA, calculating a ratio of allocated bandwidth to PEB and adjusting at least one of the MODCOD, amplifier power, and antenna size, summing a contribution to a final ratio of allocated bandwidth to PEB of the plurality of communications links, accessing a look up table and selecting a new MODCOD or adjusting the amplifier size or antenna size is based on the ratio of allocated bandwidth to PEB and altering one or more transmission or receiving parameters to apply the optimal MODCOD, amplifier size, or antenna size.

Abstract translation: 一种优化链路预算分析的方法，包括基于目标调制和编码对（MODCOD）执行第一LBA，所述MODCOD具有符号能量 - 噪声密度比（Es / No），功率放大器的目标设置或 目标天线尺寸，确定过剩余量并相应地增加或减少最大可用MODCOD，迭代地执行第二LBA，计算分配的带宽与PEB的比率并且调整MODCOD，放大器功率和天线大小中的至少一个，求和 对多个通信链路中的分配带宽与PEB的最终比例的贡献，访问查询表和选择新的MODCOD或调整放大器大小或天线尺寸是基于分配的带宽与PEB的比率，并且改变一个或 更多的传输或接收参数来应用最佳MODCOD，放大器尺寸或天线尺寸。

公开(公告)号：US09088346B2

公开(公告)日：2015-07-21

申请号：US14179352

申请日：2014-02-12

Applicant: Comtech EF Data Corp.

Inventor： Michael Beeler ,  Wallace Davis ,  Randall Remillong ,  Jason McCollum

IPC: H04B1/7097 ,  H04B1/707 ,  H04B7/185

CPC classification number: H04B1/707 ,  H04B7/18515

Abstract: A method of providing a recovery channel for a common transmission network of remote devices comprising encoding data that contains information about a primary carrier signal, modulating the encoded information, spreading, the modulated encoded information such that a secondary carrier signal results, combining, the spread secondary carrier with the primary carrier signal such that the spread secondary carrier signal occupies at least a portion of a bandwidth of the bandwidth pool, transmitting the combined primary and secondary carrier signals across a communications link having a plurality of remote carrier signals also being transmitted across the communications link to a remote receiver and sharing a same bandwidth pool (or multiple bandwidth pools), and reestablishing the communications link with the primary carrier signal after a loss of the communications link using the information about the primary carrier signal contained in the secondary carrier signal to recover one or more network configuration parameters.

Abstract translation: 提供用于远程设备的公共传输网络的恢复信道的方法，包括编码包含关于主载波信号的信息的数据，调制编码的信息，扩展调制的编码信息，使得辅载波信号结果， 具有主载​​波信号的二载波使得扩展的辅载波信号占据带宽池的带宽的至少一部分，跨越具有多个远程载波信号的通信链路传输组合的主载波信号和辅载波信号，其也跨越 到远程接收机的通信链路并且共享相同的带宽池（或多个带宽池），并且在丢失通信链路之后使用包含在辅助载波中的主载波信号的信息重新建立与主载波信号的通信链路 信号恢复一个或多个 网络配置参数。

公开(公告)号：US08934518B2

公开(公告)日：2015-01-13

申请号：US14306076

申请日：2014-06-16

Applicant: Comtech EF Data Corp.

Inventor： Frederick Morris ,  Michael Beeler

IPC: H04B1/707 ,  H04B1/7097 ,  H04B7/15 ,  H04B7/185

CPC classification number: H04B1/707 ,  H04B1/7097 ,  H04B7/15 ,  H04B7/165 ,  H04B7/18515

Abstract: A communication method for transmitting meta-data through a meta-carrier signal comprising encoding meta-data using an encoder, the meta-data comprising information that identifies a repeating relay to which a spread meta-carrier signal is to be transmitted, encoded using an encoder, modulating, using a modulator and spreading, using a spreader, the encoded meta-data such that the spread meta-carrier signal results, and transmitting, by a transmitting device, the spread meta-carrier signal to the repeating relay wherein the repeating relay does not process or modify the spread meta-carrier signal, the spread meta-carrier signal being transmitted over at least a portion of a bandwidth of the repeating relay.

Abstract translation: 一种用于通过元载波信号发送元数据的通信方法，包括使用编码器对元数据进行编码，所述元数据包括识别扩展元载波信号将被发送到的重复中继的信息，所述元数据使用 编码器，调制，使用调制器和使用扩展器扩展编码的元数据，使得扩展元载波信号导致并由传输设备将扩展元载波信号发送到重复中继，其中重复 继电器不处理或修改扩展元载波信号，扩展元载波信号通过重复中继的带宽的至少一部分传输。

公开(公告)号：US20130272155A1

公开(公告)日：2013-10-17

申请号：US13916366

申请日：2013-06-12

Applicant: Comtech EF Data Corp.

Inventor： Michael Beeler

IPC: H04L12/26

CPC classification number: H04L43/0847

Abstract: A method for generating a packet sequence for determining a Packet Error Rate (PER) using network packets, the method comprisinggenerating, using a Local Area Network (LAN) enabled computer, a series of network PER test packets and frames, each packet comprising a predetermined unique identifier and each frame comprising a predetermined sequence for the packets in the series of network packets, wherein the series of network packets and frames are each of a size that is compliant with a predetermined framing mode and encapsulation protocol for the transmission system for determining a PER from the series of network packets and frames, andtransmitting, using a transmitting device, the network packets and frames to a receiving device.

Abstract translation: 一种用于使用网络分组来生成用于确定分组错误率（PER）的分组序列的方法，所述方法包括使用启用了局域网（LAN）的计算机生成一系列网络PER测试分组和帧，每个分组包括预定的 唯一标识符，并且每个帧包括一系列网络分组中的分组的预定序列，其中，所述一系列网络分组和帧各自具有符合预定成帧模式的大小和用于确定传输系统的传输系统的封装协议 PER，并且使用发送设备将网络分组和帧传送到接收设备。

公开(公告)号：US20130177155A1

公开(公告)日：2013-07-11

申请号：US13781466

申请日：2013-02-28

Applicant: Comtech EF Data Corp.

Inventor： Kasra Akhavan-Toyserkani ,  John Youssef ,  Cris Mamaril

IPC: H04L9/28

CPC classification number: H04L9/0662

Abstract: A method of generating normally distributed random variables for communication channel simulation comprising generating, by a processor, a stream of uniformly distributed random variables using a cryptographic algorithm, applying a mathematical transform to the uniformly distributed random variables using the processor to create a signal comprised of normally distributed random variables, adjusting a mean and variance of the signal using the processor, and outputting, by the processor, an output noise signal.

Abstract translation: 一种生成用于通信信道模拟的正态分布随机变量的方法，其包括使用加密算法由处理器生成均匀分布的随机变量流，使用所述处理器对所述均匀分布的随机变量应用数学变换来创建包括 正态分布随机变量，使用处理器调整信号的均值和方差，并由处理器输出输出噪声信号。

公开(公告)号：US20130045698A1

公开(公告)日：2013-02-21

申请号：US13661632

申请日：2012-10-26

Applicant: Comtech EF Data Corp.

Inventor： Mark Dale

IPC: H04B10/105

CPC classification number: H04W52/16 ,  H04B17/391 ,  H04W52/241

Abstract: A method of transmitting telecommunications data comprising modulating first and second data signals, selecting transmit powers first and second terminals to achieve a predetermined power equivalent bandwidth (PEB) through an un-attenuated, transmitting the first data signal to the second terminal and the second data signal to the first terminal through a remote receiver, measuring a total received signal-to-noise ratio of the first and second data signals and a total received signal-to-noise ratio received at the second and first terminals, respectively, measuring a signal-power density ratio between the first and second signals, determining a ratio of excess uplink to downlink losses based a rain model parameter and operating frequency, calculating excess uplink and downlink losses relative an optimized, un-attenuated telecommunications channel, and changing a transmit power of a terminal such that the predetermined PEB is maintained when at least one of the signals experiences attenuation.

Abstract translation: 一种发送电信数据的方法，包括调制第一和第二数据信号，选择发射功率第一和第二终端，以通过未衰减的方式实现预定功率等效带宽（PEB），将第一数据信号发送到第二终端和第二数据 通过远程接收器向第一终端发送信号，分别测量第一和第二数据信号的总接收信噪比和在第二和第一终端接收的总接收信噪比，测量信号 第一和第二信号之间的功率密度比，基于雨模型参数和运行频率来确定上行链路与下行链路损耗之间的比率，相对于优化的未衰减的电信信道来计算过量的上行链路和下行链路损耗，以及改变发射功率 使得当至少一个信号经历衰减时，保持预定的PEB 估计。

公开(公告)号：US20150281311A1

公开(公告)日：2015-10-01

申请号：US14673420

申请日：2015-03-30

Applicant: Comtech EF Data Corp.

Inventor： Seth Sjoholm ,  Edward Ray Coulter

IPC: H04L29/06 ,  H04L29/08

CPC classification number: H04L69/04 ,  H03M7/30 ,  H03M7/40 ,  H04L29/08072

Abstract: A method of decoding a dynamic Huffman encoded data stream comprising receiving, by a processor, one or more input bits of encoded data from among an encoded data stream, searching, by the processor, a ternary content addressable memory (TCAM) for one or more codewords, accessing, by the processor, a plurality of random access memories (RAMs) that comprise the TCAM and have a maximum number of entries that is less than or equal to one half of two to a power of a maximum number of bits to be searched, reading a value from a first level RAM and using the value to index to a second level RAM, and outputting, by the processor, a codeword length and a decoded codeword value from either the first or second level RAM.

Abstract translation: 一种解码动态霍夫曼编码数据流的方法，包括由处理器从编码数据流中接收编码数据的一个或多个输入位，由处理器检索一个或多个三进制内容可寻址存储器（TCAM） 代码字，由处理器访问包括TCAM并且具有小于或等于二分之一的最大数量的条目的多个随机存取存储器（RAM），以达到最大位数的功率 搜索，从第一级RAM读取值并使用该值索引到第二级RAM，并且由处理器从第一级或第二级RAM输出码字长度和解码码字值。