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    • 1. 发明授权
    • Constitution of a receiver in an ultra-wideband wireless communications system
    • 超宽带无线通信系统中接收机的结构
    • US07382829B2
    • 2008-06-03
    • US10936583
    • 2004-09-09
    • Kenichi TakizawaRyuji Kohno
    • Kenichi TakizawaRyuji Kohno
    • H03K7/08H03M13/03
    • H03M13/2957H03M13/6325H04B1/71637H04B1/7176H04L1/005H04L1/0071H04L27/14
    • This invention has as its object to implement the constitution of a receiver that receives signals sent by performing multi-valued pulse modulation and performs iterative decoding. The constitution includes: (1) a bank of pulse correlators that achieves correlation with all predetermined sent pulse waveforms, (2) a pulse demapper that calculates the log likelihood ratio for each bit of the interleaved code word from said pulse correlator outputs and a priori information for each bit, (3) a deinterleaver that performs deinterleaving on the output from said pulse demapper, (4) a decoder that calculates likelihood information for the deinterleaved code word bits and information bits, respectively, (5) an interleaver that interleaves the output of the decoder in the same manner as on the sending side, and (6) a feedback circuit that provides feedback of the output of said interleaver as a priori probability to the pulse demapper.
    • 本发明的目的是实现接收通过执行多值脉冲调制发送的信号并执行迭代解码的接收机的结构。 该结构包括:(1)实现与所有预定发送脉冲波形相关的脉冲相关器组,(2)脉冲去映射器,其计算来自所述脉冲相关器输出的交错码字的每一比特的对数似然比, (3)解交织器,其对所述脉冲解映射器的输出执行去交错;(4)解码器,分别计算解交织码字位和信息位的似然信息;(5)交错器, 以与发送侧相同的方式输出解码器,以及(6)将所述交织器的输出的反馈作为先验概率提供给脉冲解映射器的反馈电路。
    • 2. 发明申请
    • Constitution of a receiver in an ultra-wideband wireless communications system
    • 超宽带无线通信系统中接收机的结构
    • US20050105649A1
    • 2005-05-19
    • US10936583
    • 2004-09-09
    • Kenichi TakizawaRyuji Kohno
    • Kenichi TakizawaRyuji Kohno
    • H03M13/27H03M13/29H03M13/39H03M13/45H04L1/00H04L25/49H04L27/14
    • H03M13/2957H03M13/6325H04B1/71637H04B1/7176H04L1/005H04L1/0071H04L27/14
    • This invention has as its object to implement the constitution of a receiver that receives signals sent by performing multi-valued pulse modulation and performs iterative decoding. The constitution includes: (1) a bank of pulse correlators that achieves correlation with all predetermined sent pulse waveforms, (2) a pulse demapper that calculates the log likelihood ratio for each bit of the interleaved code word from said pulse correlator outputs and a priori information for each bit, (3) a deinterleaver that performs deinterleaving on the output from said pulse demapper, (4) a decoder that calculates likelihood information for the deinterleaved code word bits and information bits, respectively, (5) an interleaver that interleaves the output of the decoder in the same manner as on the sending side, and (6) a feedback circuit that provides feedback of the output of said interleaver as a priori probability to the pulse demapper.
    • 本发明的目的是实现接收通过执行多值脉冲调制发送的信号并执行迭代解码的接收机的结构。 该结构包括:(1)实现与所有预定发送脉冲波形相关的脉冲相关器组,(2)脉冲去映射器,其计算来自所述脉冲相关器输出的交错码字的每一比特的对数似然比, (3)解交织器,其对所述脉冲解映射器的输出执行去交错;(4)解码器,分别计算解交织码字位和信息位的似然信息;(5)交错器, 以与发送侧相同的方式输出解码器,以及(6)将所述交织器的输出的反馈作为先验概率提供给脉冲解映射器的反馈电路。
    • 7. 发明授权
    • Distance measuring system
    • 距离测量系统
    • US07504991B2
    • 2009-03-17
    • US11370066
    • 2006-03-08
    • Huan-Bang LiKenichi Takizawa
    • Huan-Bang LiKenichi Takizawa
    • G01S13/08G01S13/10
    • G01S13/0209G01S13/106G01S13/76
    • Disclosed is a distance measuring system comprising a transmitter that sequentially generates pulse sequences each having a plurality of pulse signals of equal amplitudes arranged at equi-time intervals, and transmits the generated pulse sequence as a radio wave; and a receiver that receives the pulse sequence transmitted from the transmitter as a radio wave, and has a distance calculator that acquires propagation times of the pulse signals in the received pulse sequence, and calculates a distance from the transmitter by giving different weightings to the pulse signals for the propagation times acquired for the respective pulse signals. As the amplitudes of the pulse signals in the received pulse sequence become larger, the weightings are made larger.
    • 公开了一种距离测量系统,其包括:发射机,其顺序地产生具有以等间隔排列的等幅度的多个脉冲信号的脉冲序列,并将所生成的脉冲序列作为无线电波发送; 以及接收器,其接收从发射机发送的脉冲序列作为无线电波,并且具有距离计算器,其获取接收到的脉冲序列中的脉冲信号的传播时间,并且通过给予脉冲不同的加权来计算与发射机的距离 用于各个脉冲信号获取的传播时间的信号。 随着接收脉冲序列中脉冲信号的幅度变大,权重增大。