Miniaturized intelligent integrated radio frequency microsystem

Abstract

The invention discloses a miniaturized intelligent integrated radio frequency microsystem, which comprises a main control board and a signal processing board, the main control board integrates a power conversion unit, a clock unit and an interface unit, so that processing clocks in the system are homologous, system interfaces are expanded, and the universality of the system is further expanded; the signal processing board comprises a radio frequency processing unit and a fast hopping frequency source, the radio frequency processing unit is integrated with a second comprehensive processing chip, a zero intermediate frequency chip and a frequency source chip, digital radio frequency integrated design is adopted, the functions of amplification, filtering, frequency conversion, sampling, signal processing and frequency conversion are integrated, discrete devices and split design circuits in the prior art are replaced, and compared with traditional design, the signal processing board has the advantages that the cost is low, and the cost is low. The volume is reduced by about 30%, and the power consumption is reduced by more than 40%.

Description

Technical Field

[0001] The present invention belongs to the technical field of wireless communications, and in particular relates to a miniaturized intelligent integrated radio frequency microsystem. Background Art

[0002] In the existing technology, the RF system usually adopts a discrete hardware link design, that is, the RF preprocessing, signal processing, digital interface and other links are implemented independently, which has the disadvantages of low integration, high power consumption, high cost, poor reliability and maintainability; in addition, the traditional discrete link will cause the system sensitivity, anti-interference and other performance indicators to decline. Summary of the invention

[0003] The purpose of the invention is to provide a miniaturized intelligent integrated radio frequency microsystem, which adopts a modular, universal, and reconfigurable radio frequency system architecture, combines resource management algorithms with signal processing algorithms, and realizes multiple radio frequency processing functions such as communication, navigation, and identification.

[0004] The object of the present invention is achieved through the following technical solutions:

[0005] A miniaturized intelligent integrated radio frequency microsystem, comprising a main control board and a signal processing board;

[0006] The main control board includes a power conversion unit, a clock unit, and an interface unit;

[0007] The power conversion unit is used to convert the external power supply into various power supplies required in the microsystem;

[0008] The clock unit is used to provide a clock reference signal for the microsystem;

[0009] The interface unit is used to realize the internal and external cross-linking and control of the microsystem;

[0010] The signal processing board includes a radio frequency processing unit and a fast hopping frequency source;

[0011] The RF processing unit realizes frequency conversion, analog-to-digital / digital-to-analog conversion, filtering and signal processing of RF signals;

[0012] The fast-hopping frequency source realizes fast frequency hopping and provides a reference local oscillator for the RF processing unit;

[0013] When receiving signals: the RF signal enters the RF processing unit, is down-converted to baseband, and is sampled for signal processing. The processed service data is sent to the interface unit, packaged by the protocol, and transmitted to the external system.

[0014] During signal transmission: the interface unit receives the service information of the external system, parses it and transmits it to the RF processing unit, generates baseband data after signal processing, up-converts it to the RF frequency band after digital-to-analog conversion, and transmits it to the external RF signal transmission system;

[0015] Mode switching: The interface unit generates control instructions by analyzing external control information and transmits them to the RF processing unit to control the processing algorithm and working mode of the RF processing unit; the RF processing unit controls the frequency of the fast hopping frequency source according to the control instructions.

[0016] The beneficial effects of the present invention are:

[0017] The RF processing unit integrates the second comprehensive processing chip, zero intermediate frequency chip, and frequency source chip. It adopts a digital RF integrated design and integrates amplification, filtering, frequency conversion, sampling, signal processing, and frequency conversion functions. It replaces the existing discrete devices and split design circuits. Compared with traditional designs, the volume is reduced by about 30% and the power consumption is reduced by more than 40%.

[0018] The traditional microsystem only integrates general processors and peripheral interfaces, and further peripheral development is required for different industry applications. The present invention integrates core processing, peripheral storage, high-speed hardware interfaces, etc. to achieve higher integration for general application needs. The main control board integrates power conversion unit, clock unit and interface unit, so that the processing clock in the system is homogeneous, and the system interface is expanded to further expand the versatility of the system.

[0019] The signal processing board can be configured into various required working modes. The second integrated processing chip PSOC has programmable logic resources and general processing resources, and is equipped with a fast frequency hopping source. It can be configured according to the communication standard. The external interface can be configured on demand through the first integrated processing chip in the interface unit, realizing universalization and reconfiguration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the architecture diagram of the integrated RF microsystem;

[0021] Figure 2 This is a detailed plan diagram of the main control board;

[0022] Figure 3 Detailed schematic diagram for the signal processing board. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1 As shown, this embodiment shows a miniaturized intelligent integrated radio frequency microsystem, which includes a main control board and two signal processing boards.

[0025] See also Figure 2 As shown, the main control board includes a power conversion unit, a clock unit, and an interface unit;

[0026] The power conversion unit uses a DC-DC circuit to convert the external 12V DC power supply into various power supplies required in the microsystem.

[0027] The clock unit uses a constant temperature crystal oscillator to provide a clock reference signal for the microsystem.

[0028] The interface unit uses the first integrated processing chip and its peripheral circuits to realize the internal and external cross-linking and control of the microsystem, including internal LVDS, GPIO, GTX, CAN, and external RS485, RS422, RS232, 1553B, ARINC429, JTAG debug port, Ethernet port and other interface functions, and controls the entire system. The first integrated processing chip contains general processing resources (CPU) and programmable logic resources (FPGA).

[0029] See also Figure 3 As shown, the signal processing board includes a radio frequency processing unit and a fast hopping frequency source.

[0030] The RF processing unit realizes the frequency conversion, analog-to-digital / digital-to-analog conversion, filtering and signal processing of the RF signal. It includes the second integrated processing chip, the zero intermediate frequency chip, the frequency source chip and its peripheral circuits, wherein the zero intermediate frequency chip realizes the up and down frequency conversion, filtering, analog-to-digital / digital-to-analog conversion of the RF signal; the second integrated processing chip realizes signal processing and the internal LVDS, GPIO, GTX, CAN and the external switch control, debug port and other control and data interfaces;

[0031] The fast-hopping frequency source realizes fast frequency hopping and provides a reference local oscillator for the zero-IF chip in the RF processing unit.

[0032] The system works as follows:

[0033] Signal reception: The RF signal enters the RF processing unit, is down-converted to baseband, and is sampled for signal processing. The processed business data is sent to the interface unit and packaged by the protocol before being transmitted to the external system.

[0034] Signal transmission: The interface unit receives business information from the external system, parses it and transmits it to the RF processing unit. After signal processing, baseband data is generated, which is up-converted to the RF frequency band after digital-to-analog conversion and transmitted to the external RF signal transmission system.

[0035] Mode switching: The interface unit generates control instructions by analyzing external control information and transmits them to the RF processing unit to control the processing algorithm and working mode of the RF processing unit. The RF processing unit controls the frequency of the fast hopping frequency source according to the control instructions.

[0036] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A miniaturized intelligent integrated radio frequency microsystem, characterized in that Contains main control board and signal processing board; The main control board includes a power conversion unit, a clock unit, and an interface unit; The power conversion unit is used to convert the external power supply into various power supplies required in the microsystem; The clock unit is used to provide a clock reference signal for the microsystem; The interface unit is used to realize the internal and external cross-linking and control of the microsystem; The signal processing board includes a radio frequency processing unit and a fast hopping frequency source; The RF processing unit realizes frequency conversion, analog-to-digital / digital-to-analog conversion, filtering and signal processing of RF signals; The fast-hopping frequency source realizes fast frequency hopping and provides a reference local oscillator for the RF processing unit; When receiving signals: the RF signal enters the RF processing unit, is down-converted to baseband, and is sampled for signal processing. The processed service data is sent to the interface unit, packaged by the protocol, and transmitted to the external system. During signal transmission: the interface unit receives the service information of the external system, parses it and transmits it to the RF processing unit, generates baseband data after signal processing, up-converts it to the RF frequency band after digital-to-analog conversion, and transmits it to the external RF signal transmission system; Mode switching: The interface unit generates control instructions by analyzing external control information and transmits them to the RF processing unit to control the processing algorithm and working mode of the RF processing unit; the RF processing unit controls the frequency of the fast hopping frequency source according to the control instructions.

2. A miniaturized intelligent integrated radio frequency microsystem according to claim 1, characterized in that The power conversion unit is a DC-DC circuit.

3. A miniaturized intelligent integrated radio frequency microsystem according to claim 1, characterized in that The clock unit is a constant temperature crystal oscillator.

4. A miniaturized intelligent integrated radio frequency microsystem according to claim 1, characterized in that The interface unit adopts the first integrated processing chip and its peripheral circuits to realize the internal and external cross-linking and control of the microsystem, including internal LVDS, GPIO, GTX, CAN, and external RS485, RS422, RS232, 1553B, ARINC429, JTAG debugging port, Ethernet port, and controls the entire microsystem.

5. A miniaturized intelligent integrated radio frequency microsystem according to claim 4, characterized in that The first integrated processing chip contains a general processing resource CPU and a programmable logic resource FPGA.

6. A miniaturized intelligent integrated radio frequency microsystem according to claim 1, characterized in that The radio frequency processing unit includes a second integrated processing chip, a zero intermediate frequency chip, a frequency source chip and its peripheral circuits, wherein the zero intermediate frequency chip realizes up and down frequency conversion, filtering, and analog-to-digital / digital-to-analog conversion of the radio frequency signal; The second integrated processing chip realizes signal processing as well as internal LVDS, GPIO, GTX, CAN and external switch control and debugging port.

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