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    • 1. 发明申请
    • RADIO FREQUENCY SIGNAL TRANSCEIVER, COHERENT RADAR RECEIVER AND METHOD OF PROCESSING RADIO FREQUENCY SIGNALS
    • 无线电频率信号收发器,相干雷达接收机及其处理无线电频率信号的方法
    • WO2013164009A1
    • 2013-11-07
    • PCT/EP2012/057910
    • 2012-04-30
    • TELEFONAKTIEBOLAGET L M ERICSSON (publ)GHELFI, PaoloBOGONI, Antonella
    • GHELFI, PaoloBOGONI, Antonella
    • H04B10/90H03B28/00
    • H04B10/40G02F2/002G02F2001/212H04B10/2575H04B10/556H04B10/64H04B10/90H04B2210/006H04L7/0075
    • An RF signal transceiver (10) comprising: a mode-locked laser (12) to output an optical signal having a plurality of phase-locked modes; an optical splitter (14) to power split the optical signal into a transmitter optical signal (16) and a receiver optical signal (18); transmitter apparatus (20) to receive the transmitter optical signal and comprising: an optical filter (22) to select two of the modes; an optical modulator (24) to modulate a part of the transmitter optical signal to form at least one phase modulated optical signal; and a photodetector (28) to heterodyne the phase modulated optical signal with one of the modes without a corresponding phase modulation to form an RF signal (30) for transmission; and receiver apparatus (40) arranged to receive an RF signal (42) and the receiver optical signal and comprising: an optical modulator (44) to modulate the receiver optical signal with the received RF signal; and optical to electrical signal conversion apparatus (46) to convert the modulated receiver optical signal into a corresponding electrical signal (48).
    • 一种RF信号收发器(10),包括:锁模激光器(12),用于输出具有多个锁相模式的光信号; 用于将光信号分解成发射机光信号(16)和接收机光信号(18)的光分路器(14); 发射机装置(20),用于接收所述发射机光信号,并包括:选择两种模式的光滤波器(22); 调制发射机光信号的一部分以形成至少一个相位调制光信号的光调制器(24); 以及光电检测器(28),用于以相对相位调制的方式对所述相位调制光信号进行外差,以形成用于传输的RF信号(30); 和接收机装置(40),被配置为接收RF信号(42)和接收机光信号,并包括:光调制器(44),用接收的RF信号调制接收机光信号; 以及光电信号转换装置(46),用于将经调制的接收机光信号转换成对应的电信号(48)。
    • 2. 发明申请
    • PHOTONIC RF GENERATOR
    • 光电发生器
    • WO2013117216A1
    • 2013-08-15
    • PCT/EP2012/052015
    • 2012-02-07
    • Telefonaktiebolaget L M Ericsson (publ)GHELFI, PaoloSCOTTI, FilippoLAGHEZZA, FrancescoBOGONI, Antonella
    • GHELFI, PaoloSCOTTI, FilippoLAGHEZZA, FrancescoBOGONI, Antonella
    • H04B10/00
    • H04B10/2575H04B10/00H04B2210/006
    • An RF signal generator (50) has an optical part (10) for outputting optical carrier signals separated in optical frequency, and a modulator (20) arranged to modulate the optical carrier signals with an intermediate frequency to generate sidebands. A phase modulation is applied to one or more of the sidebands or the optical carriers, without applying the phase modulation to others of the signals, and the modulator has integrated optical paths for both the phase modulated signals and for the others of the signals. A detector part (30) carries out heterodyne detection to combine the phase modulated and other signals to output an RF signal having the phase modulation. By having integrated optical paths, the relative phase of these optical paths can be more stable than using a fiber sagnac interferometer and optical isolator thus enabling use in advanced radio communications.
    • RF信号发生器(50)具有用于输出以光频率分离的光载波信号的光学部件(10),以及调制器(20),用于以中频调制光载波信号以产生边带。 相位调制被应用于一个或多个边带或光载波,而不对其他信号施加相位调制,并且调制器具有针对相位调制信号和其它信号的集成光路。 检测器部分(30)执行外差检测以组合相位调制信号和其它信号以输出具有相位调制的RF信号。 通过具有集成的光路,这些光路的相对相位可以比使用光纤信号干涉仪和光隔离器更稳定,从而能够用于高级无线电通信。
    • 3. 发明申请
    • OPTICAL SIGNAL REGENERATOR FOR HIGH BIT-RATE TRANSMISSION SYSTEMS
    • 用于高比特率传输系统的光信号再生器
    • WO2005027379A3
    • 2005-08-25
    • PCT/EP2004051968
    • 2004-08-31
    • MARCONI COMM SPABOGONI ANTONELLAGHELFI PAOLOSCAFFARDI MIRCOPOTI LUCA
    • BOGONI ANTONELLAGHELFI PAOLOSCAFFARDI MIRCOPOTI LUCA
    • G02F1/00H04B10/299H04B10/17G02F1/35
    • H04B10/299
    • A pulsed optical signal regenerator device comprises three optical stages (11,12,13) arranged in cascade between an input (14) to which is applied a signal Si to be regenerated and an output (15) at which is available a regenerated signal Sr. The first stage (11) comprises a first noise suppressor on the zero for noise reduction in the spaces between the input signal pulses. The second stage (12) comprises an inverting converter for transferring to a clock signal (Ck) the information carried by the signal outgoing from the first stage and introducing a logical inversion of the signal for transformation of the pulses affected by noise in spaces affected by noise. The third stage (13) comprises a second noise suppressor on the zero for reduction of the noise in the spaces between the signal pulses output from the second stage. The clock signal can be at a tributary bit rate of the entering signal to obtain a demultiplexer function also.
    • 一种脉冲光信号再生器装置包括三个光级(11,12,13),它们级联地安排在输入端(14)和输出端(15)之间,输入端(14)被施加再生信号Si,输出端(15)可用再生信号Sr 第一级(11)包括位于零点上的第一噪声抑制器,用于降低输入信号脉冲之间的空间中的噪声。 第二级(12)包括一个反相转换器,用于将从第一级输出的信号所携带的信息转换成时钟信号(Ck),并引入信号的逻辑反转以转换受噪声影响的空间中的脉冲 噪声。 第三级(13)包括零点上的第二噪声抑制器,用于减少从第二级输出的信号脉冲之间的空间中的噪声。 时钟信号可以处于输入信号的支路比特率以获得解复用器功能。
    • 4. 发明申请
    • OPTICAL SIGNAL REGENERATOR FOR HIGH BIT-RATE TRANSMISSION SYSTEMS
    • 用于高比特率传输系统的光信号再生器
    • WO2005027379A2
    • 2005-03-24
    • PCT/EP2004/051968
    • 2004-08-31
    • MARCONI COMMUNICATIONS SPABOGONI, AntonellaGHELFI, PaoloSCAFFARDI, MircoPOTI, Luca
    • BOGONI, AntonellaGHELFI, PaoloSCAFFARDI, MircoPOTI, Luca
    • H04B10/16
    • H04B10/299
    • A pulsed optical signal regenerator device comprises three optical stages (11,12,13) arranged in cascade between an input (14) to which is applied a signal S i to be regenerated and an output (15) at which is available a regenerated signal S r . The first stage (11) comprises a first noise suppressor on the zero for noise reduction in the spaces between the input signal pulses. The second stage (12) comprises an inverting converter for transferring to a clock signal (Ck) the information carried by the signal outgoing from the first stage and introducing a logical inversion of the signal for transformation of the pulses affected by noise in spaces affected by noise. The third stage (13) comprises a second noise suppressor on the zero for reduction of the noise in the spaces between the signal pulses output from the second stage. The clock signal can be at a tributary bit rate of the entering signal to obtain a demultiplexer function also.
    • 脉冲光信号再生器装置包括三个光级(11,12,13),它们被级联布置在施加有待再生信号Si的输入端(14)和可再生信号Sr 第一级(11)包括用于输入信号脉冲之间的空间中用于噪声降低的零上的第一噪声抑制器。 第二级(12)包括反相转换器,用于将由第一级输出的信号所携带的信息传送到时钟信号(Ck),并引入用于变换受噪声影响的脉冲的信号的逻辑反转, 噪声。 第三级(13)包括在零上的第二噪声抑制器,用于降低从第二级输出的信号脉冲之间的空间中的噪声。 时钟信号可以处于进入信号的支路比特率,以获得解复用器功能。
    • 6. 发明申请
    • APPARATUS AND METHOD FOR GENERATING OPTICAL PULSES
    • 用于产生光学脉冲的装置和方法
    • WO2009143897A1
    • 2009-12-03
    • PCT/EP2008/056700
    • 2008-05-30
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)BOGONI, AntonellaPOTI, LucaLAZZERI, EmmaGHELFI, Paolo
    • BOGONI, AntonellaPOTI, LucaLAZZERI, EmmaGHELFI, Paolo
    • H01S3/11H01S3/115H01S3/117G02F1/225
    • H01S3/06791G02F2203/54H01S3/1062H01S3/107H01S3/1109
    • An apparatus and method for generating a train of optical pulses. The apparatus comprises an optical resonant cavity (1) for confining an optical signal in the cavity to a number of modes, a modulator (3), and a control signal generator (101). The modulator comprises an interferometer arranged to cause interference of the optical signal with itself to produce an output and controllable material, such as an electro-optic crystal, arranged in a path of the optical signal, an optical property of the controllable material dependent on a control signal (3b) applied to the controllable material such that changes in the optical property alter optical signals travelling that path to affect the interference of the optical signals, and therefore the output of the modulator. The control signal generator is arranged to generate the control signal, wherein the control magnitude is an oscillating waveform arranged to cause transmission of the optical signal through the modulator to generate pulses having a pulse width shorter than a pulse width of pulses that would be generated using a sinusoidal waveform of the same frequency.
    • 一种用于产生光脉冲序列的装置和方法。 该装置包括用于将空腔中的光信号限制到多个模式的光学谐振腔(1),调制器​​(3)和控制信号发生器(101)。 该调制器包括干涉仪,该干涉仪布置成使得光信号与其自身的干涉产生布置在光信号的路径中的输出和可控材料(例如电光晶体),该可控材料的光学性质取决于 控制信号(3b),使得光学特性的改变改变了行进该路径的光信号,以影响光信号的干扰,并因此影响调制器的输出。 所述控制信号发生器被布置成产生所述控制信号,其中所述控制幅度是布置成使所述光信号经由所述调制器的传输的振荡波形,以产生脉冲宽度短于脉冲宽度的脉冲,所述脉冲宽度将使用 相同频率的正弦波形。