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A phase encoding signal processing method, device and equipment

A phase-encoded signal and processing method technology, applied in the field of phase-encoded signal processing, can solve problems such as limited isolation, poor isolation, and poor isolation effect of absorbing materials, and achieve the effect of easy implementation and good isolation effect

Active Publication Date: 2022-04-29
BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the radio frequency simulation system of microwave anechoic chamber, the distance between the transmitting antenna and the receiving antenna cannot be very large, and the transmitting signal enters the receiving antenna through the antenna side lobe, and the isolation is poor
[0003] The traditional methods to solve the isolation include adding absorbing materials and RF cancellation. The isolation effect of the absorbing materials is poor, and the absorbing materials used in different bands are not the same. The radio frequency cancellation method can only improve the isolation degree, and the signal phase control accuracy is limited. Extremely demanding and difficult to implement

Method used

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  • A phase encoding signal processing method, device and equipment
  • A phase encoding signal processing method, device and equipment
  • A phase encoding signal processing method, device and equipment

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Embodiment 1

[0034] The embodiment of the present application is a processing method for improving isolation proposed for a narrowband phase-encoded signal.

[0035] The inventor noticed during the invention that:

[0036] The narrow-band phase-encoded signal is used for the radar to search and track the target. The phase-encoded signal is used to improve the time-width-bandwidth product of the signal and improve the resolution without reducing the search and tracking distance. In the microwave anechoic chamber radiation experiment, the distance is limited, and the modulation isolation method can be used to achieve the equivalent tracking and search effect on the target.

[0037] figure 1 It shows a schematic flowchart of the implementation of the phase encoding signal processing method in Embodiment 1 of the present application.

[0038] As shown in the figure, the phase encoding signal processing method includes:

[0039] Step 101, performing pulse modulation on the narrowband phase e...

Embodiment 2

[0055] The embodiment of the present application is a processing method for improving isolation proposed for a wideband phase-encoded signal.

[0056] The inventor noticed during the invention that:

[0057] The wideband phase encoding signal is used for radar to image the target. The large bandwidth ensures the distance resolution of the imaging. The azimuth resolution imaging is realized through azimuth accumulation. The requirement for the accumulation time is not high, as long as the accumulation angle is sufficient, so the pulse splicing method is used. Transceiver isolation allows the length of the modulated pulse train to be longer than the original pulse.

[0058] Figure 4 A schematic flow chart showing the implementation of the phase encoding signal processing method in Embodiment 2 of the present application is shown.

[0059] As shown in the figure, the phase encoding signal processing method includes:

[0060] Step 401: Perform radio frequency signal storage DRFM...

Embodiment 3

[0078] Based on the same inventive concept, the embodiment of the present application provides a phase encoding signal processing device. The principle of the device to solve the technical problem is similar to the phase encoding signal processing method in Embodiment 1, and the repetition will not be repeated.

[0079] Figure 7 A schematic structural diagram of a phase encoding signal processing device in Embodiment 3 of the present application is shown.

[0080] As shown in the figure, the phase encoding signal processing device includes:

[0081] Modulation module 701, configured to perform pulse modulation on the narrowband phase encoding signal to be transmitted; the frequency of the modulated pulse is not less than the bandwidth of the narrowband phase encoding signal;

[0082] The first processing module 702 is configured to close the receiving channel when transmitting the modulated narrowband phase-coded signal sub-pulse.

[0083] Using the phase encoding signal pr...

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Abstract

A phase-encoded signal processing method, device, and device, comprising: performing pulse modulation on a narrow-band phase-encoded signal to be transmitted; the frequency of the modulated pulse is not less than the bandwidth of the narrow-band phase-encoded signal; The receiving channel is closed during the pulse; the radio frequency signal storage DRFM is performed on the broadband phase-encoded signal to be transmitted, and the segmented playback is performed; the sum of the pulse widths, symbol sums of the sub-pulses of the broadband phase-encoded signal and the pulse width and number of symbols of the original signal Same; close the receive channel when transmitting sub-pulses of the segmented wideband phase-encoded signal. By adopting the solution in the present application, the realization is easy and the isolation effect is good.

Description

technical field [0001] The present application relates to radio frequency simulation technology, in particular, to a phase encoding signal processing method, device and equipment. Background technique [0002] In the microwave anechoic chamber radiative RF simulation system, the distance between the transmitting antenna and the receiving antenna cannot be very large, and the transmitting signal enters the receiving antenna through the antenna side lobe, and the isolation is poor. [0003] The traditional methods to solve the isolation include adding absorbing materials and RF cancellation. The isolation effect of the absorbing materials is poor, and the absorbing materials used in different bands are not the same. The radio frequency cancellation method can only improve the isolation degree, and the signal phase control accuracy is limited. The requirements are extremely high and difficult to achieve. Contents of the invention [0004] Embodiments of the present applicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B14/02
CPCH04B14/02
Inventor 刘佳琪刘向荣艾夏陈殊媛高路刘鑫水涌涛周岩龚晓刚彭程远毛伟罗旭邵节
Owner BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE