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Method and system permitting the sequential reorganization of signals

A signal-to-sequential technique, applied in the field of allowing the sequential reorganization of signals and systems, to solve problems such as low bandwidth, not allowing actual acquisition of signals, and inability to access amplitude information

Inactive Publication Date: 2009-07-22
THALES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The low bandwidth of the hybrid thus means that in order to be able to cover the entire desired frequency band one must have many hybrid phones, resulting in high cost
Another disadvantage of this system is that it is not the signal itself that is digitized, but the function corresponding to the signal that appears on the two antennas
[0006] Systems according to the prior art do not allow access to amplitude information, especially in goniometric methods, where the amplitude information is limited in the algorithm
[0007] Prior art techniques known to the applicant cannot operate over a wide frequency band
They also have no scruples about precise synchronization of signals
Moreover, they do not allow the actual acquisition of the signal, but only the image of the phase ratio of the signal acquired in pairs, which limits the downstream digital processing operations

Method used

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  • Method and system permitting the sequential reorganization of signals

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Embodiment Construction

[0022] Other features and advantages of the present invention will become apparent upon reading the following description in conjunction with the single accompanying drawings, in which an exemplary system architecture is shown, given as an illustrative and not limiting example.

[0023] The diagram represents a system structure that includes, for example:

[0024] Antenna 1n or a network of sensors,

[0025] a high-precision clock 2, which controls the sequencer 3 and enables precise setting of switching and acquisition times between each antenna 1n,

[0026] The sequencer 3 itself controls the antenna switch 4 in order to receive the signal,

[0027] The antenna switch 4 is linked to the single-channel radio frequency receiving module 5,

[0028] Capture card 6 and processing model 7.

[0029] The antenna switch 4 is used and selected to perform switching from one antenna to another. The antenna switch 4 is, for example, an N antenna to 1 reception channel switch.

[003...

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Abstract

A system permitting the sequential reorganisation of the signals received on a set of sensors is characterized in that it comprises in combination with at least the following elements: a network of aerials (1n) or sensors, a high precision clock (2), commanding a sequencer (3) and adapted to set precisely the switching and acquisition times between each aerial (1n), - the sequencer (3) is adapted to command an antenna switching device (4), - the antenna switching device (4) is connected to a single channel radio-frequency reception module (5), an acquisition board (6), and a processing model (7).

Description

technical field [0001] In particular, the invention relates to systems and methods for sequentially recombining signals. [0002] The invention is applicable to arbitrary electronic precision and signal processing applications specific to signal acquisition systems (eg, digital receivers). Background technique [0003] In a goniometric environment, the "Sequential Recombination of Signals" function enables the acquisition of the signals received on the antenna network one by one and enables them to be processed as if they were acquired simultaneously. [0004] In goniometric methods, for example, current reception principles are based on the use of analog circuits (hereinafter called hybrids) arranged on the antennas and allow processing operations on signals acquired simultaneously on several antennas. This concept enables the receiver to pick up a combination of antennas, not just one. This principle thus reduces band utilization and is only used for narrowband operating...

Claims

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Application Information

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IPC IPC(8): H04B7/08
CPCH04B7/0805H04B7/0822
Inventor L·菲什A·贝利翁C·勒梅因斯J-P·弗里科诺P·史蒂文斯
Owner THALES SA