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Correlated device capable of receiving and processing reflection signal of navigational satellite

A technology for reflected signals and navigation satellites, applied in the field of communications, which can solve the problems of multi-mode processing that does not support multi-radio solutions, limited flexibility, limited ability to add or modify interfaces and internal structures, etc.

Inactive Publication Date: 2008-08-20
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although its core component, the hardware correlator, has mature ASIC products, its flexibility is limited at the same time, and it generally does not support multi-radio solutions and multi-mode processing.
And once the product is finalized, the ability to add or modify the interface and internal structure is limited, and it is not upgradable

Method used

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  • Correlated device capable of receiving and processing reflection signal of navigational satellite
  • Correlated device capable of receiving and processing reflection signal of navigational satellite
  • Correlated device capable of receiving and processing reflection signal of navigational satellite

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, the present invention is composed of a parallel multi-channel correlation module 104, a channel configuration module 101, a time base generator 108, a resampling and decoding module 102, a reset control logic 105, a UART interface 107, a USB interface 103 and a DSP interface 106. Among them, the parallel multi-channel related module 104 is the core of the system, and the UART interface 107, the USB interface 103 and the DSP interface 106 are expanded in the periphery. The time base generator 108 externally outputs 1PPS, observation measurement interruption, integration interruption clock signals, such as figure 2 As shown, under the action of the sampling clock signal generated by it, the 8-bit digital intermediate frequency signal output by the A / D converter is first latched by the re-sampling decoding module 102, and the 3-bit...

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PUM

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Abstract

The invention discloses a relative device for receiving and processing navigation satellite reflected signal, uses the parallel multi-passage relative module as the core, according to the CPU configuration information, gives relative power outputs at various chip / Doppler time for reflected signal. Parallel multi-passage relative module is controlled by passage configuration module, and is connected with time-base generator, UART interface and DSP interface, every module accepts logistic control of reset control. The device ensures early software development of design, modeling, system-level simulation, IP core integration, and combined verification, and is suitable for various receiver systems and design of configuration function. The invention can process GPS direct signal and reflected signal at the same time, uses direct signal to navigate and position, outputs the power relating to reflected signal under the control of DSP at various delay times.

Description

Technical field [0001] The invention belongs to the field of communications, and relates to a signal processing device, in particular to a related device capable of receiving and processing navigation satellite reflection signals. Background technique [0002] With the rapid development of GNSS (Global Navigation Satellite System), the research on the reflected signals of navigation satellites is rising. European and American countries are vigorously developing airborne or spaceborne reflected signal receiving devices, exploring the application areas of reflected signals, and Many achievements have been made in theoretical research and military and civilian applications. The research and application fields of reflected signals mainly focus on sea surface altimetry, sea surface wind field, land humidity, land salinity, forest coverage, space vehicles and related sea or land mobile target detection. The key technology of the application of the reflected signal of the navigation sat...

Claims

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Application Information

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IPC IPC(8): G01S7/285
Inventor 杨东凯刘宪阳路勇
Owner BEIHANG UNIV
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