公开(公告)号：WO1993000758A1

公开(公告)日：1993-01-07

申请号：PCT/DE1992000391

申请日：1992-05-12

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  ARWEILER, Hans-Werner ,  WOLF, Andreas

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: H04L01/24

CPC classification number: H04L43/50 ,  H04L1/24

Abstract: Test data are inserted on the data source side into a data stream (DS) transmitted to a data receiver (5) from a data source (1) via at least one transmission section (4). A bit error function (e(n)) is obtained from the test data received. The bit error function (e(n)) is evaluated in a part by part manner to discover its periodicity, the length of the partial section evaluated at the same time being measured in such a way that it contains a plurality of bit errors (BF). The bit error function (e(n)) or (err(n)) is subjected to auto-correlation. The maxima (M, Ml, ...Mi) of the auto-correlation functions (AKF(m)) thus obtained are used to determine the nature of the interference (10, 11) with reference to its stochastic or deterministic nature.

公开(公告)号：WO1994003866A1

公开(公告)日：1994-02-17

申请号：PCT/DE1993000509

申请日：1993-06-07

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  WOLF, Andreas ,  ARWEILER, Hans, Werner

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: G06F15/332

CPC classification number: G06F17/141

Abstract: In order to determine spectral and/or periodic portions in a sequence of data (d(n)) containing binary values (0; 1) at a number (N) of position numbers (n), the data sequence (d(n)) is evaluated by position number at discrete evaluation points (m) with a complex analysis function (f(n, m)). To this end, to form a complex binary analysis function (BA(n, m)) on the complex analysis function (f(n, m)), a comparator function (k) is used in accordance with the prescription: k (f(n, m)) = + 1 for f(n, m) > (S); k (f(n, m)) = - 1 pour f(n, m)

公开(公告)号：WO1993000759A1

公开(公告)日：1993-01-07

申请号：PCT/DE1992000394

申请日：1992-05-12

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  ARWEILER, Hans-Werner ,  WOLF, Andreas

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: H04L01/24

CPC classification number: H04L43/50 ,  H04L1/24

Abstract: Test data (5) are inserted on the data source side into a flow of data (4) transmitted to a data receiver (3) from a data source (1) via at least one transmission path (2). A bit error function e(n) is obtained from the test data received (6) which is multiplied by an analysis function for partwise evaluation and then time-integrated. The result of evaluation is a measure of the number of bit errors. The bit error function (e(n)) is preferably auto-correlated by being used itself as an analysis function. The value of the main maximum M of the auto-correlation function AKF(m) is a measure of the number of bit errors.

公开(公告)号：WO1992017949A1

公开(公告)日：1992-10-15

申请号：PCT/DE1992000239

申请日：1992-03-19

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  ARWEILER, Hans, Werner ,  WOLF, Andreas

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: H04B03/46

CPC classification number: H04Q11/045 ,  H04B3/46

Abstract: The invention relates to a process for finding the transmission properties (H(jf)) of an electric line (2) in an ISDN system in which a test signal (m(t)) is applied to one end of the line (2) and at the other end the reception signal (g(t)) produced by the test signal (m(t)) is evaluated. In order to be able to conduct such a process with a test signal with a crest factor of one with relatively little cost, the test signal used is a binary, bipolar random numerical sequence signal (m(t)) with the crest factor one and the reception signal (g(t)) is scanned at time intervals corresponding to the period of the test signal (m(t)) and subjected to a Fourier transformation to provide a spectrum signal (G(jf)); the latter is complexly multiplied by a reference spectrum Mi(jf) to provide an output signal (H(jf)) which provides a measure for the transmission properties of the line (31).

公开(公告)号：WO1994024787A1

公开(公告)日：1994-10-27

申请号：PCT/DE1994000427

申请日：1994-04-15

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  WOLF, Andreas ,  ARWEILER, Hans-Werner

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: H04J03/16

CPC classification number: H04Q11/0478 ,  H04J3/1617 ,  H04J2203/0076 ,  H04J2203/0089 ,  H04L2012/5652 ,  H04L2012/5672 ,  Y10S370/905

Abstract: A first data flow (DS1) for a first data transmission system (DÜ1) with a first data rate contains ATM data cells (2, 3, 4) and structure data (10, 11, 12) allocated to a section (13) consisting of several ATM cells and divided and spaced out according to predetermined instructions. The data flow (DS1) is converted, while retaining its ATM data cell format, into a second data flow (DS2) containing only ATM data cells for a second data transmission system (DÜ2) with a second, higher data rate. Here, the structure data (10, 11, 12) are separated from the first data flow and entered into a marked structure cell (64) with an ATM data cell format for the section concerned. The structure cell (64) is inserted into a second data flow (DS2) so as partly to fill an unoccupied section resulting from the differing data rates.

公开(公告)号：WO1993000760A1

公开(公告)日：1993-01-07

申请号：PCT/DE1992000395

申请日：1992-05-12

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  ARWEILER, Hans-Werner ,  WOLF, Andreas

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: H04L01/24

CPC classification number: H04L43/50 ,  H04L1/24

Abstract: A flow of data (DS) from a data source (1) passes to a data receiver (9) via an intermediate path (5) and a transmission path (7). Before entering the transmission path (7) the flow of data (DS) is scrambled in a predetermined manner and unscrambled in the same manner on leaving the transmission path (7). A bit error function e(n) is obtained from test data (TZ) inserted into the flow of data (DS) at the data source and evaluated according to its period length (N). A bit error (BF) occurring before scrambling goes unmultiplied to the data receiver after unscrambling, whereas a bit error (BF) occurring on the transmission path (7) is multiplied by a period length (Nv) specific to the descrambling. A comparison of this period length (Nv) with the period length (N) of the bit error function (e(n)) makes it possible to locate the origin.

公开(公告)号：WO1994028652A1

公开(公告)日：1994-12-08

申请号：PCT/DE1994000553

申请日：1994-05-06

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  WOLF, Andreas ,  ARWEILER, Hans-Werner

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: H04J03/14

CPC classification number: H04B1/708 ,  H04B1/70751 ,  H04L7/0083 ,  H04L7/043

Abstract: The invention relates to a process for obtaining a signal from a measuring device on the transmission side indicating a synchronisation error between a pseudo-random signal sequence from a transmitter and a reference pseudo-random signal sequence from a receiver. In order to detect the synchronisation error as quickly and reliably as possible, successive sections (a, b, c) of the reference pseudo-random signal sequence (g'(n)) are cross-correlated with the received pseudo-random signal sequence (g(n)), obtaining a partial cross-correlation function (KKFa(n), KKFb(n) and KKFc(n)); the partial cross-correlation functions are added to obtain a sum cross-correlation function (KKFs(n)) which is examined for the appearance at the right time of at least three maxima (ma, mb, and mc). If the maxima (ma, mb and mc) do not appear at the right time, a signal (synch) indicating a synchronisation error is generated.

Abstract translation: 本发明涉及一种用于将发射器的伪随机信号序列和参考伪随机信号序列指示接收机侧测量装置的接收器信号之间的同步中恢复的故障。 为了确定所述同步的失败作为快速，安全地，是连续段（A，B，C）的所述参考伪随机信号序列（G“（n））的部分的每个与所接收的伪随机信号序列（G（N）），从而获得 互相关函数（KKFa（S），KKFb（n）和KKFc（n））的互相关; 的部分互相关函数获得下其上的至少三个最大值（MA，MB和MC）的及时发生检查求和的互相关函数（SCFA（n））的加入。 在产生指示同步（同步）的故障信号中的最大值（MA，MB和MC）的nichtzeitgerechtem发生。

公开(公告)号：WO1994024791A1

公开(公告)日：1994-10-27

申请号：PCT/DE1994000394

申请日：1994-04-06

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  WOLF, Andreas ,  ARWEILER, Hans-Werner ,  HASSLER, Martin

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: H04L07/027

CPC classification number: H04L7/027

Abstract: A section (AUS) limited in time of a signal (DS) is separately sampled in order to give sample values (AW). The spectrum of signal (DS) is determined from the sample values (AW) at least in the tolerance range ( DELTA f) of the expected clock frequency (fb) by means of a digital process, preferably a fast Fourier transformation. The part (SRT) of the spectrum which corresponds to the clock frequency (fb) is then determined.

公开(公告)号：WO1993017348A1

公开(公告)日：1993-09-02

申请号：PCT/DE1993000109

申请日：1993-02-03

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  WOLF, Andreas ,  ARWEILER, Hans, Werner

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: G01R27/28

CPC classification number: H04L1/242 ,  H04L1/241

Abstract: To the transmission path (4) is applied a test signal (M') formed from a sequence (m) with spectrum components (S1 ... S10) equidistantly distributed in the frequency range by linkage to an additional function (ZSF). The additional function (ZSF) is selected in such a way that the test signal (M') contains additional spectrum components (ZS1 ... ZS21) besides the spectrum components (S1 ... S10) of the sequence (m). An output signal (M'') received on the output side of the path is evaluated at assessement frequencies (AW1 ... AW10) at which the test signal (M') is free of spectrm components and in which the test signal (M') has additional spectrum components (SA1 ... SA10) after auto-convolution. Additional spectrum components (SA1 ... SA10) occurring at the evaluation frequencies (AW1 ... AW10) directly reveal non-linearity in the transmission path.