公开(公告)号：US06219376B1

公开(公告)日：2001-04-17

申请号：US09027550

申请日：1998-02-21

Applicant: Mark I. Zhodzishsky ,  Michail Y. Vorobiev ,  Victor A. Prasolov ,  Javad Ashjaee

Inventor： Mark I. Zhodzishsky ,  Michail Y. Vorobiev ,  Victor A. Prasolov ,  Javad Ashjaee

IPC: H04B1500

CPC classification number: H04B1/1036

Abstract: Method of suppression of narrow-band interferences attending at the receiver input added to the useful broadband signal and noise. There is a disclosed compensator rejecting narrow-band interferences by means of adjustment loops. Two general methods of construction of such loops are considered. The first general method is based on filtration of the in-phase and quadrature components of the error vector—difference of the interference vector and compensating vector. The second method is based on filtration of the amplitude and full phase of the interference signal. Automatic tuning of the compensator to the mean frequency and effective interference band is ensured.

Abstract translation: 抑制在接收机输入端附加到有用的宽带信号和噪声的窄带干扰的方法。有一个公开的补偿器通过调整环路拒绝窄带干扰。 考虑构建这种环的两种一般方法。 第一种一般方法是基于干涉矢量和补偿矢量的误差向量差的同相和正交分量的滤波。 第二种方法是基于过滤干扰信号的幅度和全相。 确保补偿器自动调谐到平均频率和有效干扰频带。

公开(公告)号：US20150244416A1

公开(公告)日：2015-08-27

申请号：US14370947

申请日：2013-10-28

Applicant: Andrey V. Veitsel ,  Victor A. Prasolov ,  Dmitry D. Murzinov

Inventor： Andrey V. Veitsel ,  Victor A. Prasolov ,  Dmitry D. Murzinov

IPC: H04B1/71

CPC classification number: H04B1/1036 ,  H04B1/10 ,  H04B1/109 ,  H04B1/7101 ,  H04B2001/1063 ,  H04B2201/709709

Abstract: A digital filter for narrowband interference rejection, including modules of narrowband interference rejection connected in series, each of which includes the following elements connected in series: a block of successive vector rotation based on the CORDIC vector rotation algorithm for integers, a block of reduction of the length of the rotated vector to maintain the same number of bits for digital signal representation, a block of high-pass filters for orthogonal components of the reduced vector in order to remove the interference from zero frequency region. The filter can be implemented without multiplication.

Abstract translation: 一种用于窄带干扰抑制的数字滤波器，包括串联连接的窄带干扰抑制模块，每个模块包括串联连接的以下元件：基于用于整数的CORDIC矢量旋转算法的连续矢量旋转块， 旋转矢量的长度以维持数字信号表示相同数量的比特，用于减少向量的正交分量的高通滤波器块，以便消除来自零频率区域的干扰。 滤波器可以无乘法实现。

公开(公告)号：US20130076564A1

公开(公告)日：2013-03-28

申请号：US13383807

申请日：2011-06-28

Applicant: Vladimir V. Veitsel ,  Dmitry P. Nikitin ,  Andrey V. Plenkin ,  Andrey V. Veitsel ,  Mark I. Zhodzishsky ,  Victor A. Prasolov

Inventor： Vladimir V. Veitsel ,  Dmitry P. Nikitin ,  Andrey V. Plenkin ,  Andrey V. Veitsel ,  Mark I. Zhodzishsky ,  Victor A. Prasolov

IPC: G01S19/52

CPC classification number: G01S19/52

Abstract: The present invention relates to processing information generated by GNSS receivers received signals such as GPS, GLONASS, etc. GNSS receivers can determine their position in space. The receivers are capable of determining both coordinates and velocity of their spatial movement. When a receiver is used in any machine control systems, velocity vector heading (in other words, velocity vector orientation) should be determined along with velocity vector's absolute value. Angle, determining velocity vector orientation, is calculated based on velocity vector projections which are computed in navigation receivers. The accuracy of velocity vector orientation calculated based on velocity vector projections strongly enough depends on velocity vector's absolute value. To enhance the accuracy, a method of smoothing primary estimates of velocity vector orientation angles using a modified Kalman filter has been proposed. The bandwidth of this filter is varied depending on current estimates of velocity vector's absolute value which were calculated based on the same velocity vector projections.

公开(公告)号：US07222035B1

公开(公告)日：2007-05-22

申请号：US10990605

申请日：2004-11-17

Applicant: Mark I. Zhodzishsky ,  Sergey Yudanov ,  Victor A. Prasolov ,  Victor A. Veitsel

Inventor： Mark I. Zhodzishsky ,  Sergey Yudanov ,  Victor A. Prasolov ,  Victor A. Veitsel

IPC: G06F19/00

CPC classification number: G01S19/37 ,  G01S19/23 ,  G01S19/254 ,  G01S19/29

Abstract: A method and apparatus for estimating the changing frequency of a signal received by a satellite receiver from, illustratively, positioning system satellites is disclosed that enables a more accurate measurement of the change in frequency of that signal due to movement of the satellite receiver relative to those satellites. The system includes a PLL having a numerically controlled oscillator (NCO) and a filter of frequency estimates (FFE). In operation, an analog signal is received at the satellite receiver and the PLL tracks the changing signal frequency and outputs non-smoothed frequency estimates into the FFE. The FFE then smoothes noise in the signal to produce a more accurate smoothed frequency estimate of the input signal. Comparing multiple estimates over time allows Doppler shift of the signal frequency received by the satellite receiver to be calculated more precisely, thus resulting in more accurate satellite receiver velocity vector determinations and, hence, position measurements.

Abstract translation: 公开了一种用于估计由卫星接收机从示例性地定位系统卫星接收的信号的变化频率的方法和装置，其能够更准确地测量由于卫星接收机相对于那些卫星接收机的移动而导致的该信号的频率变化 卫星。 该系统包括具有数控振荡器（NCO）的PLL和频率估计滤波器（FFE）。 在操作中，卫星接收机接收模拟信号，PLL跟踪变化的信号频率，并将非平滑频率估计输出到FFE中。 然后，FFE平滑信号中的噪声，以产生输入信号的更准确的平滑频率估计。 通过时间比较多个估计可以更准确地计算由卫星接收机接收的信号频率的多普勒频移，从而导致更精确的卫星接收机速度矢量确定，从而导致位置测量。

公开(公告)号：US09020088B2

公开(公告)日：2015-04-28

申请号：US13992288

申请日：2012-09-12

Applicant: Mark I. Zhodzishsky ,  Victor A. Prasolov ,  Alexey S. Lebedinsky ,  Daniel S. Milyutin

Inventor： Mark I. Zhodzishsky ,  Victor A. Prasolov ,  Alexey S. Lebedinsky ,  Daniel S. Milyutin

IPC: H03D3/24 ,  H04L7/033 ,  G01S19/29 ,  H03L7/085

CPC classification number: H04L7/0331 ,  G01S19/29 ,  H03L7/085 ,  H03L2207/50

Abstract: The present invention proposes a digital system and method of measuring (estimating) non-energy parameters of the signal (phase, frequency and frequency rate) received in additive mixture with Gaussian noise. The first embodiment of the measuring system consists of a PLL system tracking variable signal frequency, a block of NCO full phase computation (OFPC), a block of signal phase primary estimation (SPPE) and a first type adaptive filter filtering the signal from the output of SPPE. The second embodiment of the invention has no block SPPE, and NCO full phase is fed to the input of a second type adaptive filter. The present invention can be used in receivers of various navigation systems, such as GPS, GLONASS and GALILEO, which provide precise measurements of signal phase at different rates of frequency change, as well as systems using digital PLLs for speed measurements.

Abstract translation: 本发明提出了一种数字系统和方法，用于测量（估计）在具有高斯噪声的加法混合中接收的信号（相位，频率和频率）的非能量参数。 测量系统的第一个实施例包括一个跟踪可变信号频率的PLL系统，一个NCO全相计算块（OFPC），一个信号相位一次估计块（SPPE）和一个滤波来自输出信号的第一类型自适应滤波器 的SPPE。 本发明的第二实施例没有块SPPE，并且NCO全相被馈送到第二类型自适应滤波器的输入。 本发明可以用于诸如GPS，GLONASS和GALILEO等各种导航系统的接收机，其提供不同频率变化率的信号相位的精确测量，以及使用数字PLL进行速度测量的系统。

公开(公告)号：US08891687B1

公开(公告)日：2014-11-18

申请号：US14117091

申请日：2013-06-26

Applicant: Mark I. Zhodzishsky ,  Victor A. Prasolov ,  Vladimir V. Veitsel ,  Dmitry M. Zhodzishsky ,  Alexey S. Lebedinsky ,  Ilya V. Ivantsov

Inventor： Mark I. Zhodzishsky ,  Victor A. Prasolov ,  Vladimir V. Veitsel ,  Dmitry M. Zhodzishsky ,  Alexey S. Lebedinsky ,  Ilya V. Ivantsov

IPC: H03D3/18 ,  H03D3/24 ,  H04B17/00

CPC classification number: H04L25/0262 ,  G01S19/37 ,  H03L7/08 ,  H03L2207/50 ,  H04B17/364 ,  H04L7/0331

Abstract: Navigation satellite receivers have a large number of channels, where phase discriminators and loop filter of a PLL operate in phase, with data bits and control of numerically controlled oscillator (NCO) carried out simultaneously on all channels. Since symbol boundaries for different satellites do not match, there is a variable time delay between the generation of control signals and NCO control time. This delay may be measured by counting a number of samples in the delay interval. A proposed system measures non-energy parameters of the BPSK signal carrier received in additive mixture with noise when a digital loop filter of PLL controls NCO with a constant or changing in time delay. A control unit controls bandwidth and a LF order by changing transfer coefficients based on analyzing estimated signal parameters and phase tracking error at a PD output.

Abstract translation: 导航卫星接收机具有大量通道，其中PLL的相位鉴相器和环路滤波器同相工作，数据位和数控振荡器（NCO）的控制在所有通道上同时执行。 由于不同卫星的符号边界不匹配，控制信号的产生和NCO控制时间之间存在可变的时间延迟。 该延迟可以通过对延迟间隔中的采样数进行计数来测量。 所提出的系统在PLL的数字环路滤波器以恒定或时间延迟变化控制NCO时测量在具有噪声的加法混合中接收的BPSK信号载波的非能量参数。 控制单元通过基于分析PD输出端的估计信号参数和相位跟踪误差来改变传输系数来控制带宽和LF顺序。

公开(公告)号：US08818720B2

公开(公告)日：2014-08-26

申请号：US13383807

申请日：2011-06-28

Applicant: Vladimir V. Veitsel ,  Dmitry P. Nikitin ,  Andrey V. Plenkin ,  Andrey V. Veitsel ,  Mark I. Zhodzishsky ,  Victor A. Prasolov

Inventor： Vladimir V. Veitsel ,  Dmitry P. Nikitin ,  Andrey V. Plenkin ,  Andrey V. Veitsel ,  Mark I. Zhodzishsky ,  Victor A. Prasolov

IPC: G01C21/12 ,  G01S19/52

CPC classification number: G01S19/52

Abstract: The present invention relates to processing information generated by GNSS receivers received signals such as GPS, GLONASS, etc. GNSS receivers can determine their position in space. The receivers are capable of determining both coordinates and velocity of their spatial movement. When a receiver is used in any machine control systems, velocity vector heading (in other words, velocity vector orientation) should be determined along with velocity vector's absolute value. Angle, determining velocity vector orientation, is calculated based on velocity vector projections which are computed in navigation receivers. The accuracy of velocity vector orientation calculated based on velocity vector projections strongly enough depends on velocity vector's absolute value. To enhance the accuracy, a method of smoothing primary estimates of velocity vector orientation angles using a modified Kalman filter has been proposed. The bandwidth of this filter is varied depending on current estimates of velocity vector's absolute value which were calculated based on the same velocity vector projections.

Abstract translation: 本发明涉及由GNSS接收机生成的接收信号（例如GPS，GLONASS等）的处理信息。GNSS接收机可以确定它们在空间中的位置。 接收机能够确定其空间运动的坐标和速度。 当接收机用于任何机器控制系统时，速度矢量标题（换句话说，速度矢量方向）应与速度矢量的绝对值一起确定。 基于在导航接收机中计算的速度矢量投影计算角度，确定速度矢量方向。 基于速度矢量投影计算出的速度矢量方向的精确度足够高取决于速度矢量的绝对值。 为了提高准确性，已经提出了使用改进的卡尔曼滤波器来平滑速度矢量定向角的初级估计的方法。 该滤波器的带宽根据基于相同速度矢量投影计算的速度矢量绝对值的当前估计而变化。

公开(公告)号：US20140072084A1

公开(公告)日：2014-03-13

申请号：US13992288

申请日：2012-09-12

Applicant: Mark I. Zhodzishsky ,  Victor A. Prasolov ,  Alexey S. Lebedinsky ,  Daniel S. Milyutin

Inventor： Mark I. Zhodzishsky ,  Victor A. Prasolov ,  Alexey S. Lebedinsky ,  Daniel S. Milyutin

IPC: H04L7/033

CPC classification number: H04L7/0331 ,  G01S19/29 ,  H03L7/085 ,  H03L2207/50

Abstract: The present invention proposes a digital system and method of measuring (estimating) non-energy parameters of the signal (phase, frequency and frequency rate) received in additive mixture with Gaussian noise. The first embodiment of the measuring system consists of a PLL system tracking variable signal frequency, a block of NCO full phase computation (OFPC), a block of signal phase primary estimation (SPPE) and a first type adaptive filter filtering the signal from the output of SPPE. The second embodiment of the invention has no block SPPE, and NCO full phase is fed to the input of a second type adaptive filter. The present invention can be used in receivers of various navigation systems, such as GPS, GLONASS and GALILEO, which provide precise measurements of signal phase at different rates of frequency change, as well as systems using digital PLLs for speed measurements.

Abstract translation: 本发明提出了一种数字系统和方法，用于测量（估计）在具有高斯噪声的加法混合中接收的信号（相位，频率和频率）的非能量参数。 测量系统的第一个实施例包括一个跟踪可变信号频率的PLL系统，一个NCO全相计算块（OFPC），一个信号相位一次估计块（SPPE）和一个滤波来自输出信号的第一类型自适应滤波器 的SPPE。 本发明的第二实施例没有块SPPE，并且NCO全相被馈送到第二类型自适应滤波器的输入。 本发明可以用于诸如GPS，GLONASS和GALILEO等各种导航系统的接收机，其提供不同频率变化率的信号相位的精确测量，以及使用数字PLL进行速度测量的系统。