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公开(公告)号：US07292791B2
公开(公告)日：2007-11-06
申请号：US10873897
申请日：2004-06-21
IPC分类号： H04B10/00
CPC分类号： H04B10/64 , H04B10/25752 , H04B10/60
摘要： In a method and apparatus for converting optical wavelength division multiplexed channels to wireless channels, the information carrying optical carriers are first de-multiplexed and each optical carrier is then extracted from the data using an optical channelizing technique. The optical frequency of each of the extracted optical carriers is then shifted by an amount equal to the desired wireless carrier frequencies in the broadband wireless channels. Optical heterodyning of the frequency-shifted extracted lightwave carriers with the original data-containing optical signals, which are mutually in phase coherence, in a photodetector results in a set of wireless carriers each modulated with the data carried by the corresponding optical channel.
摘要翻译： 在将光波分复用信道转换为无线信道的方法和装置中，首先对携带载波的光载波进行解复用，然后使用光信道化技术从数据中提取每个光载波。 然后，每个提取的光载波的光频率移动等于宽带无线信道中期望的无线载波频率的量。 在光电检测器中具有相位相干的带原始数据的光信号的频移提取的光波载波的光学外差产生一组无线载波，每一个无线载波用相应光信道承载的数据进行调制。
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公开(公告)号：US07174064B2
公开(公告)日：2007-02-06
申请号：US10873898
申请日：2004-06-21
CPC分类号： H04B10/64 , H04B10/25752 , H04B10/60
摘要： In a method and apparatus for converting optical wavelength division multiplexed channels to wireless channels, the information carrying optical carriers are first de-multiplexed and each optical carrier is then extracted from the data using an optical channelizing technique. The optical frequency of each of the extracted optical carriers is then shifted by an amount equal to the desired wireless carrier frequencies in the broadband wireless channels. Optical heterodyning of the frequency-shifted extracted lightwave carriers with the original data-containing optical signals, which are mutually in phase coherence, in a photodetector results in a set of wireless carriers each modulated with the data carried by the corresponding optical channel.
摘要翻译： 在将光波分复用信道转换为无线信道的方法和装置中，首先对携带载波的光载波进行解复用，然后使用光信道化技术从数据中提取每个光载波。 然后，每个提取的光载波的光频率移动等于宽带无线信道中期望的无线载波频率的量。 在光电检测器中具有相位相干的带原始数据的光信号的频移提取的光波载波的光学外差产生一组无线载波，每一个无线载波用相应光信道承载的数据进行调制。
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公开(公告)号：US07020396B2
公开(公告)日：2006-03-28
申请号：US10256095
申请日：2002-09-25
IPC分类号： H04J14/02 , H04B10/142
CPC分类号： H04B10/25752 , H01Q3/2676 , H01Q5/40 , H01Q5/42 , H01Q13/065 , H04B1/71635 , H04B2210/006 , H04J14/02
摘要： A method and apparatus for generating an arbitrary UWB waveform are presented. An optical comb generator generates a serial stream of optical tones and an optical beating tone. A serial-to-parallel converter receives the serial tones and converts them into parallel optical tones. A spatial light modulator receives the parallel optical tones, and independently adjusts at least one of the phase and amplitude of each to generate the components of an arbitrary waveform. Next, each one of a plurality of optical-to-electrical converters receives a parallel optical tone and the selected optical beating tone, which are beat with the optical beating tone, producing electrical notes, representing differences between each parallel optical tones and the optical beating tone. Each antenna element is connected to receive an electrical note and to launch a signal based thereon, such that the launched signals are superimposed to the arbitrary waveform signal.
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公开(公告)号：US06778318B2
公开(公告)日：2004-08-17
申请号：US09897713
申请日：2001-06-29
IPC分类号： G02F202
CPC分类号： H04B10/64 , H04B10/25752 , H04B10/60
摘要： In a method and apparatus for converting optical wavelength division multiplexed channels to wireless channels, the information carrying optical carriers are first demultiplexed and each optical carrier is then extracted from the data using an optical channelizing technique. The optical frequency of each of the extracted optical carriers is then shifted by an amount equal to the desired wireless carrier frequencies in the broadband wireless channels. Optical heterodyning of the frequency-shifted extracted lightwave carriers with the original data-containing optical signals, which are mutually in phase coherence, in a photodetector results in a set of wireless carriers each modulated with the data carried by the corresponding optical channel.
摘要翻译： 在将光波分复用信道转换为无线信道的方法和装置中，首先将携带光载波的信息解复用，然后使用光信道化技术从数据中提取每个光载波。 然后，每个提取的光载波的光频率移动等于宽带无线信道中期望的无线载波频率的量。 在光电检测器中具有相位相干的带原始数据的光信号的频移提取的光波载波的光学外差产生一组无线载波，每一个无线载波用相应光信道承载的数据进行调制。
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5.发明授权Method and apparatus for conditioning a transmission path for free-space optical wireless data communications 失效用于调节自由空间光无线数据通信的传输路径的方法和装置公开(公告)号：US07627249B1
公开(公告)日：2009-12-01
申请号：US11272574
申请日：2005-11-09
申请人： Hossein Izadpanah , Mehran Mokhtari
发明人： Hossein Izadpanah , Mehran Mokhtari
IPC分类号： H04B10/00
CPC分类号： H04B10/1121
摘要： A method and apparatus for conditioning a wireless data communication path for the transmission of a signal wave are presented. The apparatus comprises a conditioning wave transmitter positioned to transmit a conditioning wave along at least a portion of the wireless data communication path. The conditioning wave forms a conditioning envelope about the data communication path. The wavelength of the conditioning wave is selected to remove undesirable particles from the wireless data communication path. As a result, the wireless data communication path is conditioned to provide for improved data communication. The conditioning wave may be transmitted co-, counter-, or bi-directionally with respect to the signal wave, and may form a second data channel.
摘要翻译： 提出了一种用于调节用于信号波传输的无线数据通信路径的方法和装置。 该装置包括定位成沿无线数据通信路径的至少一部分传送调节波的调理波发射器。 调节波形成关于数据通信路径的调节信封。 选择调节波的波长以从无线数据通信路径去除不期望的粒子。 结果，无线数据通信路径被调节以提供改进的数据通信。 调节波可以相对于信号波共同，反向或双向传输，并且可以形成第二数据信道。
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6.发明授权公开(公告)号：US07884777B2
公开(公告)日：2011-02-08
申请号：US11968079
申请日：2007-12-31
申请人： Hossein Izadpanah
发明人： Hossein Izadpanah
IPC分类号： H01Q21/00
CPC分类号： H01Q23/00 , H01Q3/2676
摘要： In one embodiment, a device is disclosed that includes: a first substrate, a plurality of antennas adjacent the first substrate; a plurality of oscillators integrated in the first substrate, each oscillator providing an output signal to drive a corresponding subset of the antennas; and a plurality of photodetectors corresponding to plurality of oscillators, each oscillator being adapted to injection lock its output signal to an electronic photodetector signal from the photodetector produced in response to an illumination of the photodetectors with a free-space optical signal modulated such that the photodetector signals are globally synchronized with each other, whereby the output signals driving the plurality antennas are also globally synchronized across the plurality of antennas.
摘要翻译： 在一个实施例中，公开了一种装置，其包括：第一基板，与第一基板相邻的多个天线; 集成在所述第一衬底中的多个振荡器，每个振荡器提供输出信号以驱动所述天线的相应子集; 以及对应于多个振荡器的多个光电检测器，每个振荡器适于将其输出信号注射到来自光电检测器的电子光电检测器信号，所述光电检测器响应于被调制的自由空间光信号而对光电检测器的照明而产生，使得光电检测器 信号彼此全局同步，从而驱动多个天线的输出信号也跨多个天线全局同步。
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7.发明授权Generating methods for single and multi-channel wideband optical analog pulse positioned waveforms 有权用于单通道和多通道宽带光模拟脉冲定位波形的生成方法公开(公告)号：US06735398B1
公开(公告)日：2004-05-11
申请号：US09526696
申请日：2000-03-15
IPC分类号： H04B1004
CPC分类号： H04B10/505 , H04B10/504
摘要： A method and system for generating single and multi-channel optical analog pulse-position modulation waveforms are disclosed. The system comprises a frequency modulator, a continuous wave optical source, and an optical modulator. The frequency modulator receives the analog signal and converts the analog signal into a frequency modulated signal. The optical modulator modulates the continuous wave optical source with the frequency modulated signal, to produce the optical pulse-position modulated signal. The method comprises converting an analog input signal into a frequency modulated signal amplifying the frequency modulated signal and producing a large signal therein, modulating a continuous wave optical source with the large signal, therein producing the optical pulse-position modulation signal, and compressing the optical pulse-position modulation signal, therein increasing a processing gain.
摘要翻译： 公开了一种用于产生单通道和多通道光模拟脉冲位置调制波形的方法和系统。 该系统包括频率调制器，连续波光源和光调制器。 频率调制器接收模拟信号并将模拟信号转换成调频信号。 光调制器用调频信号调制连续波光源，产生光脉冲位置调制信号。 该方法包括将模拟输入信号转换为放大调频信号并在其中产生大信号的调频信号，用大信号调制连续波光源，产生光脉冲位置调制信号，并压缩光 脉冲位置调制信号，其中增加处理增益。
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公开(公告)号：US08559823B2
公开(公告)日：2013-10-15
申请号：US12135138
申请日：2008-06-06
申请人： Hossein Izadpanah , Mehran Mohktari
发明人： Hossein Izadpanah , Mehran Mohktari
IPC分类号： H04B10/00
CPC分类号： H01Q3/2676 , G01S7/282 , G01S13/24
摘要： In one embodiment, a system is provided that includes: a mode-locked laser source configured to provide a pulsed multi-frequency laser output signal having spectrum with a plurality of comb lines, wherein one of the comb lines is a reference comb line, the comb lines forming a plurality of comb line pairs comprising the reference comb line and selected ones of the remaining comb lines; a plurality of optical-electronic (OE) conversion circuits, each OE circuit corresponding on a one-to-one basis to the plurality of comb line pairs, wherein each OE circuit is configured to provide an electrical output signal having a frequency corresponding to a heterodyning of the comb lines in its corresponding comb line pair; a plurality of amplifiers corresponding on a one-to-one basis with the OE conversion circuits, each amplifier configured to amplify a version of the electrical output signal from its corresponding OE conversion circuit so as to provide an amplified output signal; and an array of antennas corresponding on a one-to-one basis to the plurality of amplifiers, each antenna configured to transmit the amplified output signal from the corresponding amplifier, whereby the array of antennas transmits a coherent and multi-frequency signal output pulse.
摘要翻译： 在一个实施例中，提供了一种系统，其包括：锁模激光源，被配置为提供具有多个梳状线的频谱的脉冲多频激光输出信号，其中一条梳线是参考梳线， 梳线形成包括所述参考梳线和所选剩余梳线中的多个梳线对; 多个光电子（OE）转换电路，每个OE电路在一对一的基础上对应于多个梳状线对，其中每个OE电路被配置为提供具有对应于 其对应的梳齿线对中的梳状线的外差; 多个放大器，其与OE转换电路一一对应，每个放大器被配置为放大来自其对应的OE转换电路的电输出信号的版本，以提供放大的输出信号; 以及与所述多个放大器在一对一的基础上相对应的天线阵列，每个天线被配置为从相应的放大器发送放大的输出信号，由此所述天线阵列发送相干和多频信号输出脉冲。
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9.发明申请SYSTEM AND METHODS FOR OCDM-BASED OPTICAL ENCRYPTION USING SUBSETS OF PHASE-LOCKED FREQUENCY LINES 审中-公开使用相位锁频线路的基于OCDM的光学加密的系统和方法公开(公告)号：US20110228939A1
公开(公告)日：2011-09-22
申请号：US12724631
申请日：2010-03-16
IPC分类号： H04K1/04
CPC分类号： H04K1/04 , H04B10/516 , H04B10/60 , H04B10/85
摘要： A method for optical signal processing includes receiving an optical signal containing a plurality of frequency lines, defining at least two wavesets including an updatable random subset of the frequency lines, receiving a data stream, modulating the optical signal with the data stream, encrypting the data stream by extracting the subset of the frequency lines of the at least two wavesets from the modulated optical signal, and phase coding the subset of frequency lines of the at least two wavesets in the modulated optical signal.
摘要翻译： 一种用于光信号处理的方法包括：接收包含多个频率线的光信号，定义至少两个波群，包括频率线的可更新随机子集，接收数据流，用数据流调制光信号，加密数据 通过从所述调制的光信号中提取所述至少两个波束的频率子集的子集，以及对所述调制的光信号中的所述至少两个波群的频率线的子集进行相位编码。
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公开(公告)号：US06515622B1
公开(公告)日：2003-02-04
申请号：US09593642
申请日：2000-06-13
IPC分类号： H01Q322
CPC分类号： H01Q21/0006 , H01Q3/36
摘要： An ultra-wideband beamformer is provided by using conventional phase shifting techniques to impress data and antenna scan information onto a narrow band signal. A non-linear element then converts the narrow sine wave into ultra-wideband pulses. Phase shift key modulation impresses data information onto the sine wave in the form of a phase shift. The data-bearing sine wave is split into multiple transmission lines where each provides an additional antenna scanning phase shift. The non-linear element converts each phase of the sine wave into short pulses which are sent to radiating elements for transmission. In the far-field of the beam, the scan delays between the radiating elements are canceled out, such that the fields from each radiating element are summed and the pulse position modulated data recovered.
摘要翻译： 通过使用传统的相移技术将数据和天线扫描信息压印到窄带信号上来提供超宽带波束形成器。 然后，非线性元件将窄正弦波转换成超宽带脉冲。 相移键调制将数据信息以相移的形式印在正弦波上。 数据承载正弦波分为多条传输线，每条传输线都提供一个附加的天线扫描相移。 非线性元件将正弦波的每个相位转换成短脉冲，发送到辐射元件进行传输。 在光束的远场中，消除辐射元件之间的扫描延迟，使得来自每个辐射元件的场相加并且恢复脉冲位置调制数据。
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