FIELD: radio engineering, communication.
SUBSTANCE: apparatus for measuring the time of arrival of a two-position angle shift keyed signal has a means of receiving signals, an analogue-to-digital converter (ADC), a first fast Fourier transform (FFT) processor, a cross-spectrum computer, a second FFT processor, a device for determining arguments of the maximum of the discrete cross-correlation function (DCCF) of the signal, a third FFT processor as well as, connected in series between the output of the ADC and the input of the first FFT, a signal quadrature decomposition device, a first low-pass filter (LPF), read-only memory (ROM), and a modulo 2π subtractor; between the second output of the signal quadrature decomposition device and the second input of the ROM, there is a second LPF; the subtracting input of the subtractor is connected to the output of the ROM through a signal symbol delay unit, and the input of the third FFT processor is connected to the output of a two-level modulating signal generator through series-connected differential decoder and sampling frequency expander.
EFFECT: high computational efficiency by eliminating receiving frequency uncertainty, which enables to avoid the search for the argument of the maximum of a one-dimensional discrete cross-correlation function.
2 cl, 3 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD OF MEASURING TIME OF ARRIVAL OF SIGNAL AND APPARATUS FOR REALISING SAID METHOD | 2011 |
|
RU2476985C1 |
METHOD OF MEASURING TIME OF ARRIVAL OF SIGNAL AND APPARATUS FOR REALISING SAID METHOD | 2011 |
|
RU2476986C1 |
METHOD OF MEASURING TIME OF ARRIVAL OF SIGNAL AND APPARATUS FOR REALISING SAID METHOD | 2012 |
|
RU2524843C2 |
METHOD OF MEASURING TIME OF ARRIVAL OF SIGNAL AND APPARATUS FOR REALISING SAID METHOD | 2011 |
|
RU2483319C2 |
METHOD AND DEVICE FOR MEASURING DIFFERENCE IN SIGNAL ARRIVAL TIME AND IN SIGNAL RECEPTION FREQUENCY | 2003 |
|
RU2256192C2 |
METHOD OF ESTIMATING CHANNEL PARAMETERS IN OFDM SYSTEMS | 2019 |
|
RU2713378C1 |
METHOD OF TELEMETERING SIGNAL RECORDING AND PROCESSING WITH TIME CHANNELING | 2007 |
|
RU2338261C1 |
METHOD FOR DETERMINING MOVEMENT PARAMETERS OF HIGH-SPEED AIR OBJECT | 2023 |
|
RU2807316C1 |
METHOD OF TRANSMITTING INFORMATION USING BROADBAND SIGNALS | 2020 |
|
RU2734699C1 |
METHOD FOR SPATIAL POLARISATION-SENSITIVE LOCALISATION OF MULTIBEAM RADIO SIGNALS | 2008 |
|
RU2385467C1 |
Authors
Dates
2013-05-27—Published
2011-07-06—Filed