CN216490462U - Portable long-wave timing receiver - Google Patents

Abstract

The utility model discloses a portable long wave timing receiver in the technical field of receivers, which comprises an antenna module and also comprises: a coupler module fixedly connected with the antenna, a complete machine interface module connected with the coupler through a cable feeder, a receiving channel module electrically connected with the output end of the complete machine interface module, a data processing module electrically connected with the output end of the receiving channel module, and a man-machine interaction module electrically connected with the output end of the data processing module, the structure is reasonable, the utility model can realize the digital precise design of the portable long-wave timing receiver, the receiver has the function of simultaneously receiving twelve Rowland C long-wave signals, has high integration level and miniaturized receiver, integrates an industrial personal computer, a display and the like with a long-wave timing receiver, the portable test device is more convenient to operate and carry in a specific environment, and the problem that the portable test device cannot be carried in an outfield test is solved.

Description

Portable long-wave timing receiver

Technical Field

The utility model relates to the technical field of receivers, in particular to a portable long-wave timing receiver.

Background

With the upgrade and modification of the loran C system, the increasingly wide application and the improvement of the user demand, and with the development of the modern time service signal processing technology, a new generation of research and design of a portable long-wave timing receiver which is convenient to move and has high integration level is required, so that higher requirements are provided for the functions and performance of the portable long-wave timing receiver.

The existing long-wave timing receiver can not meet the highly dispersed timing and navigation requirements after the Rowland C system technology is upgraded and modified, can not receive twelve Rowland C long-wave signals at the same time, is inconvenient to carry, belongs to an independent host, and can not meet the design of a high-integration-level and miniaturized long-wave timing receiver in a specific environment because an industrial personal computer, related cables and upper computer control software are required to be carried if the long-wave timing receiver is used in an external field.

There is a need for a portable long wave timing receiver.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a portable long-wave timing receiver, which solves the problems that the conventional long-wave timing receiver in the background technology cannot meet the highly dispersed timing and navigation requirements after the Rowland C system technology is upgraded and modified, cannot simultaneously receive twelve Rowland C long-wave signals, is inconvenient to carry, belongs to an independent host, and cannot meet the design of a high-integration-level and miniaturized long-wave timing receiver in a specific environment because an industrial personal computer, a related cable and upper computer control software are required to be additionally carried if the long-wave timing receiver is used in an external field.

In order to achieve the purpose, the utility model provides the following technical scheme: a portable long wave timing receiver comprising an antenna module, further comprising:

the coupler module is fixedly connected with the antenna and used for receiving signals of the antenna, performing coupling, filtering, amplification and impedance matching transformation processing and sending polarized electric signals to the complete machine interface module;

the complete machine interface module is connected with the coupler through a cable feeder and is used for receiving and receiving twelve polarized electric signals and sending the polarized electric signals to the receiving channel module;

the receiving channel module is electrically connected with the output end of the complete machine interface module and used for receiving the polarized electric signals, carrying out signal front-stage processing on the polarized electric signals and sending the signals processed by the front-stage processing to the data processing module;

the data processing module is electrically connected with the output end of the receiving channel module and is used for receiving the signals processed by the front section, carrying out analog and digital conversion on the signals processed by the front section, carrying out digital processing on the converted signals and sending the signals processed by the digital processing to the human-computer interaction module; and

and the human-computer interaction module is electrically connected with the output end of the data processing module and used for receiving the digitally processed signals and the instruction setting signals of operators and outputting the digitally processed signals and various internal state information thereof through the interface and the display screen.

Preferably, the coupler module includes:

the coupling unit is fixedly connected with the antenna and used for receiving the signal of the antenna, performing coupling processing on the signal of the line and sending the signal subjected to the coupling processing to the first filtering unit;

the first filtering unit is electrically connected with the output end of the coupling unit and used for receiving the coupled signal, filtering the coupled signal and sending the filtered signal to the first amplifying unit;

the first amplifying unit is electrically connected with the output end of the first filtering unit and used for receiving the filtered signals, amplifying the filtered signals and sending the amplified signals to the impedance matching transformation unit;

and the impedance matching transformation unit is electrically connected with the output end of the first amplification unit and is used for receiving the amplified signals, carrying out impedance matching transformation on the amplified signals and sending the polarized electric signals subjected to the impedance matching transformation to the complete machine interface module.

Preferably, the receiving channel module includes:

the second amplifying unit is electrically connected with the output end of the complete machine interface module and used for receiving the polarized electric signal, amplifying the polarized electric signal and sending the amplified polarized electric signal to the second filtering unit;

the second filtering unit is electrically connected with the output end of the second amplifying unit and used for receiving the amplified polarized electric signal, filtering the amplified polarized electric signal and sending the filtered polarized electric signal to the notch unit;

the trap unit is electrically connected with the output end of the second filtering unit and is used for receiving the filtered polarized electric signal, performing trap processing on the filtered polarized electric signal and sending the trapped polarized electric signal to the linear quantization unit;

and the linear quantization unit is electrically connected with the output end of the notch unit and used for receiving the notch-processed polarized electric signal, performing linear quantization processing on the notch-processed polarized electric signal and sending a front-stage processing signal of the linear quantization processing to the data processing module.

Preferably, the data processing module includes:

the analog signal unit is electrically connected with the output end of the linear quantization unit and is used for receiving the front-section processing signal, carrying out analog processing on the front-section processing signal and sending the analog processed signal to the AD sampling unit;

the AD sampling unit is electrically connected with the output end of the analog signal unit and is used for receiving the analog processed signal, performing digital conversion processing on the analog processed signal and sending the digital converted signal to the FPGA unit;

the FPGA unit is electrically connected with the output end of the AD sampling unit and is used for receiving the signals subjected to digital conversion processing, performing digital filtering processing, search detection, signal capture, tracking locking and IPPS generation and adjustment on the signals subjected to digital conversion processing, and sending the signals subjected to IPPS generation and adjustment to the man-machine interaction module;

and the DSP unit is electrically connected with the input end of the FPGA unit and is used for sending a control signal to the FPGA unit.

Preferably, the FPGA unit includes:

the digital filtering subunit is electrically connected with the output end of the AD sampling unit and used for receiving the AD sampling processed signals, performing digital filtering processing on the AD sampling processed signals and sending the digital filtering processed signals to the searching and detecting subunit;

the search detection subunit is electrically connected with the output end of the digital filtering subunit, the input end of the search detection subunit is electrically connected with the DSP unit, and the search detection subunit is used for receiving the signals processed by the digital filtering and the control signals sent by the DSP unit, performing search detection on the signals processed by the digital filtering according to the control signals, and sending the signals detected by the search detection to the signal capture subunit;

the signal capturing subunit is electrically connected with the output end of the search detection subunit, the input end of the signal capturing subunit is electrically connected with the DSP unit, and the signal capturing subunit is used for receiving the search detection signal and the control signal sent by the DSP unit, capturing the search detection signal according to the control signal, and sending the captured signal to the tracking locking subunit;

the tracking locking subunit is electrically connected with the output end of the signal capturing subunit, the input end of the tracking locking subunit is electrically connected with the DSP unit, and the tracking locking subunit is used for receiving the captured signal and a control signal sent by the DSP unit, tracking and locking the captured signal according to the control signal, and sending the tracking and locking signal to the IPPS generation and adjustment subunit;

and the input end of the IPPS generation and adjustment subunit is electrically connected with the DSP unit and is used for receiving the tracking and locking signal and the control signal sent by the DSP unit, resolving the tracking and locking signal according to the control signal to obtain the specific position information of the receiving antenna and sending the specific position information of the receiving antenna to the man-machine interchange module.

Preferably, the DSP unit includes:

the carrier tracking loop control subunit is electrically connected with the output end of the search detection subunit;

the capturing control subunit is electrically connected with the output end of the signal capturing subunit;

the period identification control subunit is electrically connected with the output end of the tracking locking subunit;

and the delay correction algorithm subunit is electrically connected with the output end of the IPPS generation and adjustment subunit.

Compared with the prior art, the utility model has the beneficial effects that: the utility model adopts FPGA technology, CPU technology and high-speed D/A conversion to realize the digital precise design of the portable long-wave timing receiver, the receiver has the function of simultaneously receiving twelve-path Rowland C long-wave signals, the integration level is high, the receiver is miniaturized, an industrial personal computer, a display and the like are integrated with the long-wave timing receiver, the operation and the carrying are more convenient under specific environment, and the problem that the portable long-wave timing receiver can not be carried during the external field test is solved.

Drawings

FIG. 1 is a block diagram of a receiver of the present invention;

FIG. 2 is a block diagram of a coupler module of the present invention;

FIG. 3 is a block diagram of a receive channel module according to the present invention;

FIG. 4 is a block diagram of a data processing module according to the present invention;

FIG. 5 is a block diagram of the FPGA unit and the DSP unit of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides the following technical scheme: the utility model provides a portable long wave timing receiver, can effectual realization in the use to portable long wave timing receiver's digital accurate design, the function of receiving twelve routes Rowland C long wave signals simultaneously, the integrated level is high, the receiver is miniaturized, it is more convenient to operate and carry under specific environment, increased coupler module, complete machine interface module, receiving channel module, data processing module and human-computer interaction module, please refer to fig. 1-5, including the antenna module, still include:

the coupler module is fixedly connected with the antenna and used for receiving signals of the antenna, performing coupling, filtering, amplification and impedance matching transformation processing, and sending polarized electric signals to the whole machine interface module, wherein the type of the coupler module is set as the type of the coupler module FC-CLC;

the complete machine interface module is connected with the coupler through a cable feeder and is used for receiving twelve polarized electric signals and sending the polarized electric signals to the receiving channel module;

the receiving channel module is electrically connected with the output end of the complete machine interface module and used for receiving the polarized electric signals, carrying out signal front-stage processing on the polarized electric signals and sending the signals processed by the front-stage processing to the data processing module, and the model of the receiving channel module is set to be R12 DS;

the data processing module is electrically connected with the output end of the receiving channel module and is used for receiving the signals processed by the front section, carrying out analog and digital conversion on the signals processed by the front section, carrying out digital processing on the converted signals and sending the signals processed by the digital processing to the human-computer interaction module; and

and the man-machine interaction module is electrically connected with the output end of the data processing module and used for receiving the digitally processed signals and instruction setting signals of an operator and outputting the digitally processed signals and various internal state information thereof through an interface and a display screen, and the model of the man-machine interaction module is set to be AM 4376/79.

Further, the coupler module includes:

the coupling unit is fixedly connected with the antenna and used for receiving the signal of the antenna, performing coupling processing on the signal of the line and sending the signal subjected to the coupling processing to the first filtering unit;

the first filtering unit is electrically connected with the output end of the coupling unit and used for receiving the coupled signal, filtering the coupled signal and sending the filtered signal to the first amplifying unit;

the first amplifying unit is electrically connected with the output end of the first filtering unit and used for receiving the filtered signals, amplifying the filtered signals and sending the amplified signals to the impedance matching transformation unit;

and the impedance matching transformation unit is electrically connected with the output end of the first amplification unit and is used for receiving the amplified signals, carrying out impedance matching transformation on the amplified signals and sending the polarized electric signals subjected to the impedance matching transformation to the complete machine interface module.

Further, the receiving channel module includes:

the second amplifying unit is electrically connected with the output end of the complete machine interface module and used for receiving the polarized electric signal, amplifying the polarized electric signal and sending the amplified polarized electric signal to the second filtering unit;

the second filtering unit is electrically connected with the output end of the second amplifying unit and used for receiving the amplified polarized electric signal, filtering the amplified polarized electric signal and sending the filtered polarized electric signal to the notch unit;

the trap unit is electrically connected with the output end of the second filtering unit and is used for receiving the filtered polarized electric signal, performing trap processing on the filtered polarized electric signal and sending the trapped polarized electric signal to the linear quantization unit;

and the linear quantization unit is electrically connected with the output end of the notch unit and used for receiving the notch-processed polarized electric signal, performing linear quantization processing on the notch-processed polarized electric signal and sending a front-stage processing signal of the linear quantization processing to the data processing module.

Specifically, the polarized electrical signal is subjected to technical processing such as amplification, filtering, notch and linear quantization, so as to achieve functions of interference suppression of external noise and other adjacent radio services, level amplification of the analog signal, analog-to-digital conversion of the signal, and the like.

Further, the data processing module comprises:

the analog signal unit is electrically connected with the output end of the linear quantization unit and is used for receiving the front-section processing signal, carrying out analog processing on the front-section processing signal and sending the analog processed signal to the AD sampling unit;

the AD sampling unit is electrically connected with the output end of the analog signal unit and is used for receiving the analog processed signal, performing digital conversion processing on the analog processed signal and sending the digital converted signal to the FPGA unit;

and the FPGA unit is electrically connected with the output end of the AD sampling unit and used for receiving the signals processed by digital conversion, performing digital filtering processing, search detection, signal capture, tracking locking and IPPS generation and adjustment on the signals processed by digital conversion, and sending the signals generated and adjusted by IPPS to the man-machine interaction module, wherein the FPGA unit comprises: a digital filter subunit electrically connected with the output end of the AD sampling unit, for receiving the AD sampling processed signal, performing digital filtering processing on the AD sampling processed signal, and sending the digital filtering processed signal to a search detection subunit, a search detection subunit electrically connected with the output end of the digital filter subunit, wherein the input end of the search detection subunit is electrically connected with the DSP unit, for receiving the digital filtering processed signal and the control signal sent by the DSP unit, performing search detection on the digital filtering processed signal according to the control signal, and sending the search detection signal to a signal capture subunit, and a signal capture subunit electrically connected with the output end of the search detection subunit, and the input end of the signal capture subunit is electrically connected with the DSP unit, for receiving the search detection signal and the control signal sent by the DSP unit, acquiring the signal detected by the search according to the control signal, and sending the acquired signal to the tracking lock subunit, the tracking locking subunit is electrically connected with the output end of the signal capturing subunit, the input end of the tracking locking subunit is electrically connected with the DSP unit and is used for receiving the captured signal and the control signal sent by the DSP unit, performing tracking locking on the captured signal according to the control signal, and sending the tracking-locked signal to the IPPS generation and adjustment subunit, the input end of the IPPS generation and adjustment subunit is electrically connected with the DSP unit and is used for receiving a tracking and locking signal and a control signal sent by the DSP unit, resolving the tracking and locking signal according to the control signal to obtain specific position information of the receiving antenna, and sending the specific position information of the receiving antenna to the human-machine interchange module;

with FPGA unit's input electric connection's DSP unit for send control signal for FPGA unit, the DSP unit includes: the system comprises a search detection subunit, a carrier tracking loop control subunit, a capture control subunit, a period identification control subunit and a time delay correction algorithm subunit, wherein the carrier tracking loop control subunit is electrically connected with the output end of the search detection subunit, the capture control subunit is electrically connected with the output end of the signal capture subunit, the period identification control subunit is electrically connected with the output end of the tracking locking subunit, and the time delay correction algorithm subunit is electrically connected with the output end of the IPPS generation and adjustment subunit.

Specifically, the FPGA technology, the CPU technology and the high-speed D/A conversion are adopted to realize the digital accurate design of the portable long-wave timing receiver.

The working principle is as follows: when the antenna is used, the coupling unit receives signals of the antenna and sends the coupled signals to the first filtering unit, the first filtering unit receives the coupled signals, carries out filtering processing on the coupled signals and sends the filtered signals to the first amplifying unit, the first amplifying unit receives the filtered signals and carries out amplification processing on the filtered signals, the amplified signals are sent to the impedance matching transformation unit, the impedance matching transformation unit receives the amplified signals and carries out impedance matching transformation processing on the amplified signals and sends the polarized signals subjected to impedance matching transformation processing to the complete machine interface module, the complete machine interface module receives the polarized signals and sends the polarized signals to the second amplifying unit, the second amplifying unit receives the polarized signals and carries out amplification processing on the polarized signals, and transmitting the amplified polarized electric signal to a second filtering unit, the second filtering unit receiving the amplified polarized electric signal, performing filtering processing on the amplified polarized electric signal, and transmitting the filtered polarized electric signal to a notching unit, the notching unit receiving the filtered polarized electric signal, performing notching processing on the filtered polarized electric signal, and transmitting the notched polarized electric signal to a linear quantizing unit, the linear quantizing unit receiving the notched polarized electric signal, performing linear quantizing processing on the notched polarized electric signal, and transmitting a linear quantized processed signal of a previous stage to an analog signal unit, the analog signal unit receiving the processed signal of the previous stage, performing analog processing on the processed signal of the previous stage, and transmitting the analog processed signal to an AD sampling unit, the AD sampling unit receiving the analog processed signal, performing digital conversion processing on an analog processed signal, sending the digital converted signal to a digital filtering subunit, receiving an AD sampling processed signal by the digital filtering subunit, performing digital filtering processing on the AD sampling processed signal, sending the digital filtering processed signal to a search detection subunit, sending a control signal to the search detection subunit by a carrier tracking loop control subunit, receiving the digital filtering processed signal and the control signal by the search detection subunit, performing search detection on the digital filtering processed signal according to the control signal, sending the search detected signal to a signal capture subunit, sending the control signal to a signal capture subunit by the capture control subunit, receiving the search detected signal and the control signal by the signal capture subunit, capturing the search detected signal according to the control signal, and sending the captured signal to a tracking locking subunit, the period identification control subunit sends a control signal to the tracking locking subunit, the tracking locking subunit receives the captured signal and the control signal, tracking and locking the captured signal according to the control signal, and sending the tracking and locking signal to the IPPS generation and adjustment subunit, sending the control signal to the IPPS generation and adjustment subunit by the delay correction algorithm subunit, electrically connecting the input end of the IPPS generation and adjustment subunit with the DSP unit, for receiving the tracking and locking signal and the control signal, the tracking and locking signal is resolved according to the control signal to obtain the specific position information of the receiving antenna, and the specific position information of the receiving antenna is sent to the man-machine interchange module, the man-machine interchange module receives the digitally processed signal and the instruction setting signal of the operator, the signal after digital processing and various internal state information are output through the interface and the display screen.

While the utility model has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (3)

1. A portable long wave timing receiver comprising an antenna module, characterized in that: further comprising:

the coupler module is fixedly connected with the antenna and used for receiving signals of the antenna, performing coupling, filtering, amplification and impedance matching transformation processing and sending polarized electric signals to the complete machine interface module;

the complete machine interface module is connected with the coupler through a cable feeder and is used for receiving and receiving twelve polarized electric signals and sending the polarized electric signals to the receiving channel module;

the receiving channel module is electrically connected with the output end of the complete machine interface module and is used for receiving the polarized electric signals, carrying out signal front-stage processing on the polarized electric signals and sending the signals processed by the front stage to the data processing module;

the data processing module is electrically connected with the output end of the receiving channel module and is used for receiving the signals processed by the front section, carrying out analog and digital conversion on the signals processed by the front section, carrying out digital processing on the converted signals and sending the signals processed by the digital processing to the human-computer interaction module; and

and the human-computer interaction module is electrically connected with the output end of the data processing module and used for receiving the digitally processed signals and the instruction setting signals of operators and outputting the digitally processed signals and various internal state information thereof through the interface and the display screen.

2. A portable longwave timing receiver as claimed in claim 1, wherein: the coupler module includes:

the coupling unit is fixedly connected with the antenna and used for receiving the signal of the antenna, performing coupling processing on the signal of the line and sending the signal subjected to the coupling processing to the first filtering unit;

the first filtering unit is electrically connected with the output end of the coupling unit and used for receiving the coupled signal, filtering the coupled signal and sending the filtered signal to the first amplifying unit;

the first amplifying unit is electrically connected with the output end of the first filtering unit and used for receiving the filtered signals, amplifying the filtered signals and sending the amplified signals to the impedance matching transformation unit;

and the impedance matching transformation unit is electrically connected with the output end of the first amplification unit and is used for receiving the amplified signals, carrying out impedance matching transformation on the amplified signals and sending the polarized electric signals subjected to the impedance matching transformation to the complete machine interface module.

3. A portable longwave timing receiver according to claim 1, characterized in that: the reception channel module includes:

the second amplifying unit is electrically connected with the output end of the complete machine interface module and used for receiving the polarized electric signal, amplifying the polarized electric signal and sending the amplified polarized electric signal to the second filtering unit;

the second filtering unit is electrically connected with the output end of the second amplifying unit and used for receiving the amplified polarized electric signal, filtering the amplified polarized electric signal and sending the filtered polarized electric signal to the notch unit;

the trap unit is electrically connected with the output end of the second filtering unit and is used for receiving the filtered polarized electric signal, performing trap processing on the filtered polarized electric signal and sending the trapped polarized electric signal to the linear quantization unit;

and the linear quantization unit is electrically connected with the output end of the notch unit and used for receiving the notch-processed polarized electric signal, performing linear quantization processing on the notch-processed polarized electric signal and sending a front-stage processing signal of the linear quantization processing to the data processing module.

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