公开(公告)号：JP2003124844A

公开(公告)日：2003-04-25

申请号：JP2002269458

申请日：2002-09-17

Applicant: ST MICROELECTRONICS NV ,  ST MICROELECTRONICS SA

Inventor： CATTANEO CHIARA ,  HELAL DIDIER ,  ARNAUD THIERRY ,  LEBOWSKY FRITZ ,  CATTENOZ REGIS

IPC: H04B1/69 ,  H04B1/707

Abstract: PROBLEM TO BE SOLVED: To decode an incident pulse signal of the ultra wideband type through digital processing. SOLUTION: The incident pulse signal of the ultra wideband type conveys digital information encoded by using pulses in a known theoretical shape. A decoding device is equipped with an input means which receives the incident signal and sends a base signal out, a preprocessing means which is so adapted as to receive the base signal and sends out an intermediate signal representing the code of the base signal with respect to a reference, a means which samples an intermediate ISN signal and sends a digital signal out, a synchronizing means, a decoding means, and a digital processing means which is so adapted as to correlate the digital signal with a reference correlation signal corresponding to a theoretical base signal arising from the reception of the theoretical pulses having the known theoretical shape.

公开(公告)号：DE602005013806D1

公开(公告)日：2009-05-20

申请号：DE602005013806

申请日：2005-12-20

Applicant: ST MICROELECTRONICS NV

Inventor： KIRSCH MIGUEL ,  CATTENOZ REGIS ,  TANRIKULU STEPHANE ,  CATTANEO CHIARA ,  CORSI FEDERICO

IPC: H04L27/26

Abstract: The method of notching the transmission band of an analog signal to be transmitted and including sub-carriers to be modulated from digital modulation coefficients respectively associated to said sub-carriers, said method comprises providing (30) an initial digital signal from successive frequency-domain groups each containing said digital modulation coefficients respectively associated to said sub-carriers, filtering (31) said initial signal with a frequency resolution greater than the frequency resolution of said frequency-domain groups in order to remove frequencies corresponding to said sub-carriers to be removed and windowing (32) said filtered signal using a windowing mask (WMSK) having a representation in the frequency-domain including a main lobe and secondary lobes, the power spectrum of said lobes decreasing faster than the inverse of the frequency squared.