Device and method for improving dynamic range of short-wave receiver by adopting multiple AD (analog-to-digital) converters

Abstract

The invention discloses a device and method for improving the dynamic range of a short-wave receiver by adopting multiple AD converters, and belongs to the technical field of short-wave receivers. The device comprises a signal acquisition module, a multi-channel processing module and a signal dynamic processing module; the signal acquisition module is used for receiving and acquiring short wave signals; the multi-channel processing module is used for respectively preprocessing short-wave signals of different frequency bands and transmitting the short-wave signals to the signal dynamic processing module; and the signal dynamic processing module is used for receiving the preprocessed short-wave signals and processing and forwarding the preprocessed short-wave signals according to the frequency bands of the short-wave signals. The detection frequency division module distributes the shortwave signals to be processed to the corresponding radio frequency signal processing modules through the preprocessing frequency band list, so that efficient dynamic processing of the shortwave signals in the preprocessing stage is realized; and the signal access dynamic distribution module transmits the short-wave signals to the A / D converter according to the short-wave signal frequency band list, so that the short-wave signals of different frequency bands are dynamically and efficiently processed.

Description

Technical Field

[0001] This invention relates to the field of shortwave receiver technology, and more specifically to a device and method for improving the dynamic range of a shortwave receiver using multiple AD converters. Background Technology

[0002] A shortwave receiver is a device used to receive shortwave radio signals; it can serve as a receiving terminal for shortwave telegraph, telephone, fax, low-speed data, and broadcast circuits. Currently, shortwave receivers either use only one detection DDC or a fixed RF signal processing module to process different shortwave signals; these methods are inefficient, have narrow dynamic range, and are cost-effective, failing to effectively meet the requirements of frequency / channel scanning and various adjustment modes. Therefore, this invention provides a device and method for improving the dynamic range of a shortwave receiver using multiple AD converters. Summary of the Invention

[0003] To address the aforementioned technical shortcomings, the present invention aims to provide an apparatus and method for improving the dynamic range of a shortwave receiver using multiple A / D converters. This method achieves efficient dynamic processing of the shortwave signal during the preprocessing stage through a detection frequency division module, and simultaneously achieves efficient dynamic processing of the preprocessed shortwave signal through a signal access dynamic allocation module. This solves the problems of low processing efficiency and narrow dynamic range in existing shortwave receivers in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a device for improving the dynamic range of a shortwave receiver using a multi-chip AD converter, including a signal acquisition module, a multi-channel processing module, and a signal dynamic processing module; the signal acquisition module is used for receiving and acquiring shortwave signals; the multi-channel processing module preprocesses shortwave signals of different frequency bands separately and transmits them to the signal dynamic processing module; the signal dynamic processing module is used for receiving the preprocessed shortwave signals and processing and forwarding the preprocessed shortwave signals according to their frequency bands.

[0005] Preferably, the multi-channel processing module includes several radio frequency signal processing modules and a detection frequency division module; the detection frequency division module is electrically connected to the signal acquisition module and is used to detect the frequency band of the shortwave signal; the detection frequency division module is electrically connected to several radio frequency signal processing modules respectively and is used to transmit the shortwave signal to the corresponding radio frequency signal processing module according to the different frequency bands of the shortwave signal.

[0006] Preferably, the radio frequency signal processing module includes a filtering module, a frequency conversion module, and an amplification module connected in sequence, which are used to perform filtering, frequency conversion, and amplification preprocessing on the shortwave signal.

[0007] Preferably, the detection frequency division module stores a preprocessed frequency band list; the preprocessed frequency band list stores preprocessed frequency bands corresponding to different radio frequency signal processing modules; the detection frequency division module allocates shortwave signals to the corresponding radio frequency signal processing modules according to the preprocessed frequency bands in the preprocessed frequency band list.

[0008] Preferably, the signal dynamic processing module includes a signal access dynamic allocation module, several A / D converters, an intermediate frequency processing board, and a network board; the signal access dynamic allocation module is electrically connected to several radio frequency signal processing modules and is used to receive pre-processed shortwave signals; the signal access dynamic allocation module is used to allocate the pre-processed shortwave signals to the corresponding A / D converters according to the frequency band.

[0009] Preferably, the signal access dynamic allocation module includes a shortwave signal frequency band list; different frequency bands of shortwave signals in the shortwave signal frequency band list correspond to different A / D converters; the A / D converters transmit the converted shortwave signals to the intermediate frequency processing board for data processing.

[0010] Preferably, the detection frequency division module in the multi-channel processing module and the signal access dynamic allocation module in the signal dynamic processing module are both electrically connected to the dynamic setting module; the dynamic setting module is used to set the preprocessing frequency bands in the preprocessing frequency band list and their corresponding radio frequency signal processing modules; at the same time, it is used to set the shortwave signal frequency bands in the shortwave signal frequency band list and their corresponding A / D converters.

[0011] A method for improving the dynamic range of a shortwave receiver using a multi-chip analog-to-digital converter includes the following steps:

[0012] A00: Receives and acquires shortwave signals through the signal acquisition module and transmits them to the detection frequency division module;

[0013] A01: The detection frequency division module assigns the shortwave signal to be processed to the corresponding radio frequency signal processing module through the preprocessed frequency band list;

[0014] A02: The radio frequency signal processing module performs filtering, frequency conversion, and amplification preprocessing on the shortwave signal and transmits the preprocessed shortwave signal to the signal access dynamic allocation module in the multi-channel processing module.

[0015] A03: The signal access dynamic allocation module transmits the shortwave signal to the corresponding A / D converter according to the shortwave signal frequency band list;

[0016] A04: The A / D converter transmits the converted shortwave signal to the intermediate frequency processing board for data processing.

[0017] Preferably, before A00, the preprocessing frequency bands in the preprocessing frequency band list and their corresponding radio frequency signal processing modules are set through the dynamic setting module; at the same time, the shortwave signal frequency bands in the shortwave signal frequency band list and their corresponding A / D converters are set.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The detection frequency division module of this invention allocates the shortwave signal to be processed to the corresponding radio frequency signal processing module through the preprocessing frequency band list, thereby realizing efficient dynamic processing of the shortwave signal preprocessing stage; at the same time, the signal access dynamic allocation module transmits the shortwave signal to the corresponding A / D converter according to the shortwave signal frequency band list, thereby realizing dynamic and efficient processing of shortwave signals of different frequency bands.

[0020] 2. This invention enables the processing of shortwave signals over a wider range by dynamically setting the preprocessing frequency bands and their corresponding radio frequency signal processing modules in the preprocessing frequency band list, as well as the shortwave signal frequency bands and their corresponding A / D converters in the shortwave signal frequency band list, thereby achieving convenient and efficient processing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of a device for improving the dynamic range of a shortwave receiver using multiple AD converters, provided in an embodiment of the present invention.

[0023] Figure 2 This is a flowchart of a method for improving the dynamic range of a shortwave receiver using a multi-chip AD converter, as provided in an embodiment of the present invention. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1:

[0026] like Figure 1As shown, this invention provides a device for improving the dynamic range of a shortwave receiver using a multi-chip AD converter, including a signal acquisition module, a multi-channel processing module, and a signal dynamic processing module. The signal acquisition module is used for receiving and acquiring shortwave signals. The multi-channel processing module preprocesses shortwave signals of different frequency bands separately and transmits them to the signal dynamic processing module. Specifically, the multi-channel processing module includes several radio frequency signal processing modules and a detection frequency division module. The detection frequency division module is electrically connected to the signal acquisition module and is used to detect the frequency band of the shortwave signal. The detection frequency division module is electrically connected to several radio frequency signal processing modules respectively and is used to transmit the shortwave signal to the corresponding radio frequency signal processing module according to the different frequency bands of the shortwave signal. The preprocessing stage satisfies the preprocessing of signals with a wider range of frequency bands, which is convenient for subsequent signal processing. In addition, the radio frequency signal processing module includes a filtering module, a frequency conversion module, and an amplification module connected in sequence, which are used to filter, convert, and amplify the shortwave signal in sequence to achieve effective preprocessing of the shortwave signal. Furthermore, the detection frequency division module stores a pre-processed frequency band list; the pre-processed frequency band list stores pre-processed frequency bands corresponding to different radio frequency signal processing modules; the detection frequency division module allocates shortwave signals to the corresponding radio frequency signal processing modules according to the pre-processed frequency bands in the pre-processed frequency band list; here, the shortwave signals in the pre-processed frequency band list correspond to different radio frequency signal processing modules, realizing dynamic allocation of different shortwave ranges, which is more efficient.

[0027] The signal dynamic processing module receives pre-processed shortwave signals and processes and forwards them according to their frequency bands. Specifically, the signal dynamic processing module includes a signal access dynamic allocation module, several A / D converters, an intermediate frequency processing board, and a network board. The signal access dynamic allocation module is electrically connected to several radio frequency signal processing modules and is used to receive the pre-processed shortwave signals. The signal access dynamic allocation module is used to allocate the pre-processed shortwave signals to the corresponding A / D converters according to different frequency bands. By allocating the pre-processed shortwave signals to the corresponding A / D converters according to different frequency bands through the dynamic allocation module, dynamic processing of shortwave signals in different frequency bands is achieved, which is convenient and efficient.

[0028] Example 2:

[0029] Please see Figure 1As shown, while retaining all the technical features of Specific Embodiment 1, the signal access dynamic allocation module includes a shortwave signal frequency band list; different frequency bands of shortwave signals in the shortwave signal frequency band list correspond to different A / D converters; the A / D converters transmit the converted shortwave signals to the intermediate frequency processing board for data processing. Simultaneously, the detection frequency division module in the multi-channel processing module and the signal access dynamic allocation module in the signal dynamic processing module are both electrically connected to the dynamic setting module; the dynamic setting module is used to set the preprocessing frequency bands and their corresponding RF signal processing modules in the preprocessing frequency band list; it is also used to set the shortwave signal frequency bands and their corresponding A / D converters in the shortwave signal frequency band list. In practical application, by setting the preprocessing frequency bands and their corresponding RF signal processing modules in the preprocessing frequency band list, and setting the shortwave signal frequency bands and their corresponding A / D converters in the shortwave signal frequency band list, a wider range of shortwave signal processing can be achieved, making it convenient and efficient.

[0030] Please see Figure 2 As shown, a method for improving the dynamic range of a shortwave receiver using a multi-chip AD converter includes the following steps:

[0031] A00: Receives and acquires shortwave signals through the signal acquisition module and transmits them to the detection frequency division module;

[0032] A01: The detection frequency division module assigns the shortwave signal to be processed to the corresponding radio frequency signal processing module through the preprocessed frequency band list;

[0033] A02: The radio frequency signal processing module performs filtering, frequency conversion, and amplification preprocessing on the shortwave signal and transmits the preprocessed shortwave signal to the signal access dynamic allocation module in the multi-channel processing module.

[0034] A03: The signal access dynamic allocation module transmits the shortwave signal to the corresponding A / D converter according to the shortwave signal frequency band list;

[0035] A04: The A / D converter transmits the converted shortwave signal to the intermediate frequency processing board for data processing.

[0036] In addition, before A00, the preprocessing frequency bands in the preprocessing frequency band list and their corresponding RF signal processing modules are set through the dynamic setting module; at the same time, the shortwave signal frequency bands in the shortwave signal frequency band list and their corresponding A / D converters are set.

[0037] In practical use, the detection frequency division module of this invention allocates the shortwave signal to be processed to the corresponding radio frequency signal processing module through the preprocessing frequency band list, realizing efficient dynamic processing of the shortwave signal preprocessing stage. Simultaneously, the signal access dynamic allocation module transmits the shortwave signal to the corresponding A / D converter according to the shortwave signal frequency band list, achieving dynamic and efficient processing of shortwave signals in different frequency bands. Furthermore, by setting the preprocessing frequency bands and their corresponding radio frequency signal processing modules in the preprocessing frequency band list, as well as the shortwave signal frequency bands and their corresponding A / D converters in the shortwave signal frequency band list, a wider range of shortwave signal processing can be achieved, making it convenient and efficient.

[0038] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A device for improving the dynamic range of a shortwave receiver using multiple A / D converters, characterized in that, It includes a signal acquisition module, a multi-channel processing module, and a signal dynamic processing module; the signal acquisition module is used for receiving and acquiring shortwave signals. The multi-channel processing module preprocesses shortwave signals of different frequency bands separately and then transmits them to the signal dynamic processing module. The signal dynamic processing module is used to receive the pre-processed shortwave signal and process and forward the pre-processed shortwave signal according to the frequency band of the shortwave signal.

2. The apparatus for improving the dynamic range of a shortwave receiver using multiple AD converters as described in claim 1, characterized in that, The multi-channel processing module includes several radio frequency signal processing modules and a detection frequency division module; the detection frequency division module is electrically connected to the signal acquisition module and is used to detect the frequency band of the shortwave signal; the detection frequency division module is electrically connected to several radio frequency signal processing modules respectively and is used to transmit the shortwave signal to the corresponding radio frequency signal processing module according to the different frequency bands of the shortwave signal.

3. The apparatus for improving the dynamic range of a shortwave receiver using multiple AD converters as described in claim 2, characterized in that, The radio frequency signal processing module includes a filtering module, a frequency conversion module, and an amplification module connected in sequence, which are used to perform filtering, frequency conversion, and amplification preprocessing on shortwave signals.

4. The apparatus for improving the dynamic range of a shortwave receiver using multiple AD converters as described in claim 3, characterized in that, The detection frequency division module stores a preprocessed frequency band list; the preprocessed frequency band list stores preprocessed frequency bands corresponding to different radio frequency signal processing modules; the detection frequency division module allocates shortwave signals to the corresponding radio frequency signal processing modules according to the preprocessed frequency bands in the preprocessed frequency band list.

5. The apparatus for improving the dynamic range of a shortwave receiver using multiple AD converters as described in claim 4, characterized in that, The signal dynamic processing module includes a signal access dynamic allocation module, several A / D converters, an intermediate frequency processing board, and a network board. The signal access dynamic allocation module is electrically connected to several radio frequency signal processing modules and is used to receive pre-processed shortwave signals. The signal access dynamic allocation module is used to allocate the pre-processed shortwave signals to the corresponding A / D converters according to the frequency band.

6. The apparatus for improving the dynamic range of a shortwave receiver using multiple AD converters as described in claim 5, characterized in that, The signal access dynamic allocation module has a shortwave signal frequency band list; different frequency bands of shortwave signals in the shortwave signal frequency band list correspond to different A / D converters; the A / D converters transmit the converted shortwave signals to the intermediate frequency processing board for data processing.

7. The apparatus for improving the dynamic range of a shortwave receiver using multiple AD converters as described in claim 6, characterized in that, The detection frequency division module in the multi-channel processing module and the signal access dynamic allocation module in the signal dynamic processing module are both electrically connected to the dynamic setting module. The dynamic setting module is used to set the preprocessing frequency bands in the preprocessing frequency band list and their corresponding radio frequency signal processing modules; at the same time, it is used to set the shortwave signal frequency bands in the shortwave signal frequency band list and their corresponding A / D converters.

8. The method for improving the dynamic range of a shortwave receiver using a multi-chip AD converter as described in any one of claims 1-7, characterized in that, The process includes the following: A00: Receives and acquires shortwave signals through the signal acquisition module and transmits them to the detection frequency division module; A01: The detection frequency division module assigns the shortwave signal to be processed to the corresponding radio frequency signal processing module through the preprocessed frequency band list; A02: The radio frequency signal processing module performs filtering, frequency conversion, and amplification preprocessing on the shortwave signal and transmits the preprocessed shortwave signal to the signal access dynamic allocation module in the multi-channel processing module. A03: The signal access dynamic allocation module transmits the shortwave signal to the corresponding A / D converter according to the shortwave signal frequency band list; A04: The A / D converter transmits the converted shortwave signal to the intermediate frequency processing board for data processing.

9. The method of the apparatus for improving the dynamic range of a shortwave receiver using multiple AD converters as described in claim 8, characterized in that, Before A00, the preprocessing frequency bands in the preprocessing frequency band list and their corresponding RF signal processing modules are set through the dynamic setting module; at the same time, the shortwave signal frequency bands in the shortwave signal frequency band list and their corresponding A / D converters are set.

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