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    • 11. 发明申请
    • RADIO COMMUNICATION APPARATUS
    • 无线电通信设备
    • US20140348209A1
    • 2014-11-27
    • US14455242
    • 2014-08-08
    • Renesas Electronics Corporation
    • Takahiro KAWANO
    • H04B1/7136H04B1/715
    • H04B1/7136H04B1/715H04B1/71632H04B2001/71365H04B2001/7154
    • An apparatus includes: an offset adjustment unit supplying an offset correction signal corresponding to a frequency switching to an adder unit receiving output from a mixer; a timing adjustment unit adjusting the timing of a frequency switching signal supplied to a local oscillator and the timing of an offset correction amount switching signal supplied to the offset adjustment unit for changing an offset amount in correspondence with the frequency switching in the local oscillator; a noise amount measurement and calculation unit receiving a signal obtained by amplifying and filtering the signal from the adder unit, to measure a noise amount of the signal and generates a timing determination signal based on the noise amount; and a control unit controlling frequency switching signal timing and the offset correction amount switching signal supplied to the timing adjustment unit, based on the timing determination signal from the noise amount measurement and calculation unit.
    • 一种装置包括:偏移调整单元,将对应于频率切换的偏移校正信号提供给从混合器接收输出的加法器单元; 定时调整单元,调整提供给本地振荡器的频率切换信号的定时和提供给偏移调整单元的偏移校正量切换信号的定时,用于根据本地振荡器中的频率切换改变偏移量; 噪声量测量和计算单元接收通过对来自加法器单元的信号进行放大和滤波而获得的信号,以测量信号的噪声量,并基于噪声量产生定时确定信号; 以及控制单元,其基于来自噪声量测量和计算单元的定时确定信号,控制频率切换信号定时和提供给定时调整单元的偏移校正量切换信号。
    • 12. 发明申请
    • Method and System for Estimation and Extraction of Interference Noise from Signals
    • 用于估计和提取信号干扰噪声的方法和系统
    • US20140347213A1
    • 2014-11-27
    • US14452902
    • 2014-08-06
    • U.S. Army Research Laboratory ATTN: RDRL-LOC-I
    • Lam H. NguyenTrac D. Tran
    • G01S13/90H04B15/00
    • H04B15/00G01S7/023G01S13/0209G01S13/90H04B1/71632H04B17/345H04L27/0004
    • A system for reception of electromagnetic waves in spectrum in which interference occurs comprising at least one transmitter; at least one receiver configured to receive the received signal; a first memory portion configured to store data relating to a point target response; a spectrum estimator configured to estimate the frequencies at which interfering signals occur; at least one processor configured to generate an estimation of the interfering signals at the frequencies estimated by the spectrum estimator; a second memory portion operatively connected to the at least one processor configured to store the estimation of the components of the interfering signals; the at least one processor configured to substantially reduce or eliminate radio frequency interfering signals from the received signal utilizing the point target response and the estimation of the interfering signals; and a method to substantially reduce or eliminate radio frequency interfering signals from for image data.
    • 一种用于在发生干扰的频谱中接收电磁波的系统,包括至少一个发射机; 至少一个接收器,被配置为接收所接收的信号; 第一存储器部分,被配置为存储与点目标响应有关的数据; 频谱估计器,被配置为估计发生干扰信号的频率; 至少一个处理器,被配置为产生由所述频谱估计器估计的频率处的所述干扰信号的估计; 第二存储器部分,可操作地连接到被配置为存储干扰信号的分量的估计的至少一个处理器; 所述至少一个处理器被配置为利用所述点目标响应和所述干扰信号的估计来大大减少或消除来自所接收信号的射频干扰信号; 以及从图像数据中显着减少或消除射频干扰信号的方法。
    • 14. 发明授权
    • High-speed sampling and low-precision quantification pulse ultra-wideband wireless communication method
    • 高速采样和低精度量化脉冲超宽带无线通信方式
    • US08630329B2
    • 2014-01-14
    • US13498576
    • 2009-09-28
    • Zaichen ZhangGuangguo BiXiaohu YouLiang Wu
    • Zaichen ZhangGuangguo BiXiaohu YouLiang Wu
    • H04B1/00
    • H04B1/7183H04B1/71632H04B1/717
    • For a demand of high speed, low cost and low power loss short distance wireless communication, a high-speed sampling and low-precision quantification pulse ultra-wideband wireless communication method is provided. A baseband narrow pulse sequence is generated at a transmission end using the digital technology by the method, and is transmitted after modulating amplifying and filtering and amplifying at a reception end, after the digital-signal processing of synchronizing, channel estimating, related detecting, and channel decoding, tec, is performed for the quantified data, the transmission information is retrieved. Comparing with the present carrier mechanism UWB wireless communication technology, the method does not need the complex radio frequency processing of orthogonal modulation/demodulation and frequency spectrum moving, etc, the quantification precision of analog-to-digital conversion is also decreased greatly, so the cost and power loss are greatly decreased; comparing with the present pulse mechanism UWB wireless communication technology, the method provided by the present invention greatly increase the data transmission rate, and increases the stability, reliability and integration.
    • 针对高速,低成本,低功耗短距离无线通信的需求,提供了高速采样和低精度定量脉冲超宽带无线通信方式。 使用该方法的数字技术,在发送端生成基带窄脉冲序列,在进行同步,信道估计,相关检测和数字信号估计的数字信号处理之后,在接收端进行调制放大和滤波放大后发送 对量化数据执行信道解码tec,检索发送信息。 与现有载波机制UWB无线通信技术相比,该方法不需要正交调制/解调和频谱移动等复杂的射频处理,模数转换的量化精度也大大降低, 成本和功率损耗大大降低; 与目前的脉冲机制UWB无线通信技术相比,本发明提供的方法大大提高了数据传输速率,提高了稳定性,可靠性和集成度。
    • 15. 发明授权
    • High data rate transmitter and receiver
    • 高数据速率发射机和接收机
    • US08532586B2
    • 2013-09-10
    • US13317177
    • 2011-10-12
    • Ismail LakkisYasaman BahreiniJohn Santhoff
    • Ismail LakkisYasaman BahreiniJohn Santhoff
    • H04B1/02
    • H04B1/71637H04B1/71632H04B1/71635
    • A high-speed transmitter and receiver are provided. In one embodiment, a transmitter comprises a baseband processor structured to receive data and to convert the data into a multiplicity of high and low signal values, with each high and low signal value having a first timing interval. A local oscillator generates a clock signal at a second timing interval and a digital circuit combines the high and low signal values with the clock signal to produce a transmission signal directly at a transmission frequency. A receiver is configured to receive the signal. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.
    • 提供高速发射器和接收器。 在一个实施例中,发射机包括被构造为接收数据并将数据转换成多个高和低信号值的基带处理器,其中每个高和低信号值具有第一定时间隔。 本地振荡器以第二定时间隔产生时钟信号,并且数字电路将高信号值和低信号值与时钟信号组合,以直接以传输频率产生传输信号。 接收器被配置为接收信号。 本摘要仅用于遵守允许读者快速确定本文所包含的披露的主题的抽象要求规则。 本摘要以明确的理解提交,不会用于解释或限制权利要求的范围或含义。
    • 17. 发明授权
    • Architecture for ultra-wideband radio
    • 超宽带无线电架构
    • US08351483B1
    • 2013-01-08
    • US11958960
    • 2007-12-18
    • James L. Tucker
    • James L. Tucker
    • H04B1/00
    • H04B1/71632H04B1/7172
    • Provided are transmitter topology, receiver topology and methods for generating and transmitting a radio signal at a transmitter and detecting and processing a radio signal at a receiver. The radio signals are transmitted across a wireless interface using Ultra Wideband (UWB) pulses. A transmitted reference approach is utilized. The radio signal include pairs of UWB pulses with each pair of pulses separated by a fixed time delay. The two pulses are then combined to provide for improved noise immunity.
    • 提供了发射机拓扑,接收机拓扑和用于在发射机处生成和发送无线电信号的方法以及在接收机处检测和处理无线电信号。 无线电信号通过使用超宽带(UWB)脉冲的无线接口传输。 使用传输的参考方法。 无线电信号包括UWB脉冲对,每对脉冲以固定的时间延迟分开。 然后将两个脉冲组合以提供改善的抗噪声能力。
    • 19. 发明申请
    • RADIO COMMUNICATION APPARATUS AND OFFSET CORRECTION METHOD
    • 无线电通信设备和偏移校正方法
    • US20100322288A1
    • 2010-12-23
    • US12789615
    • 2010-05-28
    • TAKAHIRO KAWANO
    • TAKAHIRO KAWANO
    • H04B1/00
    • H04B1/7136H04B1/715H04B1/71632H04B2001/71365H04B2001/7154
    • An apparatus includes: an offset adjustment unit that supplies an offset correction signal corresponding to a frequency switching to an adder unit that receives an output from a mixer; a timing adjustment unit that adjusts the timing of a frequency switching signal supplied to a local oscillator and the timing of an offset correction amount switching signal supplied to the offset adjustment unit for changing an offset amount in correspondence with the frequency switching in the local oscillator; a noise amount measurement and calculation unit that receives a signal obtained by amplifying and filtering of the signal from the adder unit, to measure a noise amount of the signal and generates a timing determination signal based on the measured noise amount; and a control unit that controls the timing of the frequency switching signal and the offset correction amount switching signal supplied to the timing adjustment unit, based on the timing determination signal from the noise amount measurement and calculation unit.
    • 一种装置包括:偏移调整单元,其将与频率切换相对应的偏移校正信号提供给从混合器接收输出的加法器单元; 定时调整单元,其调节提供给本地振荡器的频率切换信号的定时和提供给偏移调整单元的偏移校正量切换信号的定时,用于根据本地振荡器中的频率切换改变偏移量; 噪声量测量和计算单元,其接收通过对来自加法器单元的信号进行放大和滤波获得的信号,以测量信号的噪声量,并基于测量的噪声量产生定时确定信号; 以及控制单元,其基于来自噪声量测量和计算单元的定时确定信号,控制提供给定时调整单元的频率切换信号和偏移校正量切换信号的定时。