RU78953U1 - HYDROACOUSTIC STATION WITH FLEXIBLE EXTENDED TOWABLE ANTENNA FOR A HYDROACOUSTIC SUBMARINE COMPLEX - Google Patents

Abstract

A hydroacoustic station with a flexible extended towed acoustic antenna (GPBA) for a hydroacoustic complex (SAC) of submarines (PL), containing a GPBA, a cable tug, current transfer, pre-processing equipment (APO), a unit for the main processing of signals of the noise detection mode (TIP), a remote control control and indication, moreover, GPAA converters are connected via a towing cable and current junction to the inputs of the APO, the outputs of the APO are connected to the input of the main signal processing block of the ШП mode, the block of the main signal processing of the ШП mode in made on the basis of digital technology and is part of the digital computer complex (CVC) HAC, the information output of this unit is connected to the first input of the control and display panel, the control input of this unit is connected to the first output of the control and display panel, characterized in that a cabinet emitting antenna located in the aft part of the submarine, a multi-channel generator device (GU) and a unit for the main processing of echo signals of the sonar mode (GL) were introduced, and the APO output is additionally connected to the input of the unit and the main processing of the GL mode echoes, the outputs of the multi-channel PG are connected to the transducers of the cabinet emitting antenna, the information output of the main GL mode echo processing unit is connected to the second input of the control and display panel, the control input of this unit is connected to the second output of the control and display panel , the input of a multi-channel control unit is connected to the third output of the control and display panel.

Description

The utility model relates to the field of hydroacoustics and can be used in the design of new and modernization of existing hydroacoustic stations (GAS) with a flexible extended towed acoustic antenna (HBA) for sonar complexes (SAC) of submarines.

A GAS with a GPBA is a part of all standard configurations of modern SAC submarines [1-7] and is designed to detect targets in the noise-detecting (ShP) mode. The tactical and technical characteristics of a gas station with a GPAA, the principles of its construction, operation and composition of the station are given, for example, in [1, pp. 54-66, 191-197]. It should be noted that in some complexes, the task of detecting targets using GPAA is not solved with the help of an independent station, but with the corresponding mode of operation, using the general devices of the complex.

As an example, GAS with GPBA of the TV-16 type (then TV-23 and TV-29), which are part of the SAC AN / BQQ-5, AN / BQQ-6 [1, p.312-317], can serve as an example.

Another example is a HAS with the GPAA of the sonar complex as part of ASYBU BSY-2, USA, adopted for service in 1995 [1, p. 317].

A number of submarines in Germany, Sweden and some other countries are equipped with a sonar system CSU 90 developed and manufactured by STN Atlas Elektronik (Germany). A gas cylinder with a gas cylinder in the CSU 90 SAC is the closest in functional and technical characteristics to the proposed utility model and is taken as a prototype. Information about it is presented in the materials [1-3].

The acoustic antenna (GPBA) of the station in question is connected in series through the tug cable and the current junction of the launching device to the signal preprocessing equipment (APO). After pre-processing, the received target noise signals enter the main signal processing unit of the NW mode, which is part of the digital computer complex (CVC). This may be the Central Exhibition Complex of an independent GAC, which is part of the GAC. In modern and promising complexes, information from all stations is processed in a single CVC. Therefore, the main signal processing block of the ШП mode signal may be a component of the general CVC HAC. This block implements spatial and frequency-time signal processing, implements automatic tracking of targets, their classification, etc. After processing in the CVC, information is presented on the control and display panel in alphanumeric or graphic form.

The prototype device (and analogues) have the following disadvantages due to the lack of sonar mode (GL) in them.

1) When a target is detected in the silo mode using a GAS with GPAA, the measurement of the distance to the target with high accuracy is not provided, this task is solved only in the GL mode.

2) Search for a target in a GAS with the GPAA HAK of a submarine is usually, for reasons of secrecy, performed only in the silo mode. However, given the low noise level of modern submarines, in a number of sonar conditions and tactical situations it is advisable to search for targets in the GL mode (and the range

Detection by a station of a PL target in sonar mode significantly exceeds the detection range by a station of a PL target in SHP mode). It should also take into account the increased potential of the station due to the large concentration coefficient at low frequencies of the HBA receiving echo signals.

The objective of the proposed utility model is to expand the functionality of the GAS with GPBA in order to eliminate the above disadvantages.

The technical result of the utility model is to provide the station with the following significant additional functions:

- determination in GL mode of the distance to the target detected in the NW mode;

- providing target search in GL mode.

To ensure the specified technical result in a sonar station with a GPAA for a HAC submarine containing a GPAA, a tug cable, a current junction, an APO, a main signal processing unit of the SHP mode, a control and display panel, the station’s GPBA transducers are connected via a tug cable and a junction to the inputs APO, the outputs of the APO are connected to the inputs of the main signal processing block of the ШП mode, the main signal processing block of the ШП mode is based on digital technology and is included in the digital computer complex (CVC), and ode this unit are connected to the first input of the remote control and indication,

new distinctive features have been introduced, namely:

- a hull emitting antenna located in the aft part of the submarine, a multichannel generator device (GU), and a unit for the main processing of GL mode echoes were introduced;

- the APO output is additionally connected to the input of the main processing unit of the echo signals of the GL mode;

- the outputs of the multi-channel PG are connected to the transducers of the housing emitting antenna;

- the outputs of the main processing unit for the echo signals of the GL mode are connected to the second input of the control and display panel;

- the input of the multi-channel control unit is connected to the third output of the control and display panel.

The indicated technical results are achieved by introducing into the station a radiating antenna located in the aft part of the submarine hull and a multi-channel generator device, which ensures the emission of sounding signals. Due to this arrangement of the radiating antenna, the probing signals are emitted within the aft sector of view. The reception of echo signals, as well as noise signals of the power supply mode, is performed by GPBA, i.e. within a sector whose boundaries coincide with the boundaries of the search sector in the NR mode. Processing of echoes is carried out by the main processing unit of the echo signals of the GL mode introduced into the CVC. Thus, in the station with GPBA, a sonar mode is provided for the submarine hull.

This utility model proposes a radiating antenna located on the submarine housing. It should be noted that a towed version of the radiating antenna is also possible.

Due to the low operating frequencies of the GL mode introduced and the large concentration coefficient at these frequencies of modern GPA, the GL mode in a number of regions of the World Ocean provides the detection of submarine targets at substantially greater ranges than the GP mode. Calculations show, for example, that under certain conditions for a HAS with the HBA of one of the SAS submarines, the detection range of a target in the GL mode is three times the detection range of such a target in the silo mode.

Providing a HAS with a GPAA in the GL mode in a number of areas of the World Ocean with a greater target detection range than in the AL mode enables the station to solve new tactical tasks.

The essence of the utility model is illustrated by figure 1, which shows a block diagram of the proposed gas-powered generator with GPBA GAK PL.

The station contains a flexible long towed antenna 1, cable tug 2, current junction 3, signal preprocessing equipment 4, main signal processing unit 5 for power supply mode and main signal processing unit 6 for GL mode echo signals combined in CVC 7, control and indication panel 8 , multichannel generator device 9 and a radiating antenna 10. Antenna converters 1 are connected via a tow cable 2 and a current junction 3 to the inputs of the APO 4, the outputs of the APO 4 are connected to the input of the main signal processing unit 5 of the ШП mode and the input of the main unit 6 processing the GL mode echoes in CVC 7, the outputs of the main mode processing block 5 signal processing unit block 5 and the GL mode echo processing block 6 are connected respectively to the first and second inputs of the control and display panel 8, the third output of the panel 8 is connected to the input of the multi-channel generator device 9, the output of this device is connected to the transducers of the radiating antenna 10.

The receiving antenna 1 is designed to convert the energy of mechanical (acoustic) vibrations into electrical energy; emitting antenna 10 - for converting electrical energy into mechanical energy. Antennas of the claimed utility model do not have specificity, methods for calculating the characteristics of such antennas and designs are known [4-7]. Issues of the formation of directional characteristics are also reflected in the literature [7, p. 56-79].

The emitting acoustic antenna 10 can be implemented, in particular, on the basis of low-frequency electromagnetic transducers, developed and tested in order to conduct ocean tomography [13].

In a multi-channel generator device 9, a probing signal of the required power is generated; control signals of the signal parameters are generated in the remote control 8 control and display. Block diagrams of generating devices, their structure and methods for generating sounding signals are described, in particular, in [8, pp. 91-95, 12].

Current transfer 3 is designed to transmit signals from the cable tug of the GPBA to the inputs of the APO.

The signal preprocessing equipment 4 is performed on analog or analog-digital means. Typical functions of this equipment are: amplification, filtering, conversion of signals from analog to digital form. These issues are covered in the book [8, pp. 99-106].

Block 5 of the main signal processing in the BB mode and block 6 of the main processing of echo signals in the GL mode in CVC 7 using digital methods carry out primary information processing (spatial and frequency-time filtering of signals) and secondary processing (automatic target tracking - ACS, classification goals, development of target designation data for weapons). CVK 7 is a set of universal processors and special processors and has a structure like a host computer [9].

The remote control 8 displays and uses adopted in modern information systems, incl. in sonar complexes, the display control method also implements its functions in all paths of the HAC [11]. The structure of the remote control 8 control and display similar to the structure of a personal computer. Software forms a multi-window alphanumeric and graphic display of information. Typical peripheral devices are connected to the various ports of the console: telephone, speaker, printer, recorder, device

recordings on the magneto-optical disk, as well as the inputs / outputs of general ship systems with which the HAC exchanges information [8, p.108-112; 9; 10, p. 418-421; eleven].

Figure 1 does not show some typical systems of modern sonar stations and complexes: a noise monitoring and measurement system, the sensors of which are distributed over acoustic antennas, and the equipment is combined with the equipment of the corresponding paths; automated system for monitoring and troubleshooting; system of hydro-acoustic calculations. These systems are run completely on the program-oriented means of CVK 7, their operation algorithms are described, for example, in [10, pp. 492-509].

The station is as follows.

Consider first the work in the Silk mode.

Acoustic signals of interference and noise of the target are converted by GPBA 1 converters to electrical signals, and then they are fed through the cable tug 2 and current junction 3 to the inputs of the APO 4. In the APO 4, the signals are amplified, the working frequency band of the channel is formed, and the signals are converted to digital form. Digital signals from the outputs of the APO 4 are supplied to the CVC 7, to the input of the block 5 of the main signal processing mode SHP. In this block, primary information processing is carried out - the formation of a static fan of directivity characteristics, the formation of frequency subbands, the selection of signals of discrete components and the continuous part of the spectrum, threshold analysis and other known operations [1, p. 53-65] are implemented in each spatial channel. In this block, secondary information processing is also carried out - automatic tracking of detected targets, their classification, preparation and delivery of target designation data, preparation of information for display on the screen of the control and display panel 8. Observing information display frames on his screen, listening to target signals using headphones, the operator decides to detect the target, issue target designation data (CC) to external systems and issues them using the appropriate controls. When determining the distance to the target, the operator turns on the GL mode.

Work in the GL mode.

In the multi-channel GU 9, a probing signal is formed and its power is amplified. From the outputs of the multi-channel PG 9, the probing signal is fed to the converters of the radiating antenna 10 of the station. Antenna converters 10 convert the electrical energy of the probing signals into acoustic, the signals are radiated into the aquatic environment. Acoustic interference and echo signals from the target are converted by the GPAA converters 1 into electrical signals, after which they are fed through the cable tug 2 and current junction 3 to the inputs of the APO 4. In APO 4, the echo signals are amplified, the working frequency band of the path is formed, and the signals are converted into digital form. Digital signals from the outputs of the APO are supplied to CVC 7, to the input of block 6 of the main processing of the echo signals of the GL mode. In this block, the primary processing of information is carried out - the formation of a fan of directivity characteristics, coordinated filtering of echo signals in Doppler channels, separation of the envelope of the received signal, threshold analysis and other known operations [1, 7, 8-10] are implemented in each spatial channel. In the distance measurement mode, one directivity characteristic is formed, the axis of which is set in the direction to the target developed in the NW mode. In block 6 of the main processing of GL mode echoes, secondary processing of information is also carried out - automatic tracking of detected targets, their classification, output of target designation data, preparation of information for listening and display on the screen of the control and indication panel 8. Observing information display frames on his screen, listening to target signals using headphones, the operator decides on

the issuance of target designation data (CC) to external systems and issues them using the appropriate controls of the remote control 8 control and display.

The inventive utility model GAS with GPBA for HAC PL can be used for developed and modernized HAC PL.

Literature

1. Koryakin Yu.A., Smirnov S.A., Yakovlev G.V. Ship sonar equipment. St. Petersburg: Science, 2004

2. STN Atlas Elektronik - Jane's Navy Internat., 1997, v. 102, No. 5, Suppl., Pp. 1,2-5,11

3. Atlas Submarine Sonar System CSU 90. Prospectus from STN Atlas Elektronik GmbH, Bremen, Germany (prototype)

4. TSM 2233. Sonar System for Submarine. Prospectus of Thomson Marconi Sonar, France

5. Yatsenko I. Prospects for the development of nuclear multipurpose submarines - Zarub. Military Review, 2000, No. 5, 45-51

6. Kozhevnikov V. Hydroacoustic means of French SSBNs - Zarub. Military Review, 1998, No. 3, 48-50

7. Smaryshev M.D., Dobrovolsky Yu.Yu. Hydroacoustic antennas. L., Shipbuilding, 1984

8. Mitko VB, Evtyutov A.P., Gushchin S.E. Hydroacoustic communications and surveillance. L., Shipbuilding, 1982

9. RF patent No. 2207620. Digital computer complex for signal processing in sonar systems. IPC G01S 15/00, G06F 15/16. Claim 03/11/2001, publ. 06/27/2003

10. Handbook of sonar. L., Shipbuilding, 1988

11. Utility model No. 24331. Remote control for marine equipment MPK G01S 7/524. Claim 12/24/2001, publ. 07/27/2002

12. RF patent No. 2195687. Hydroacoustic transmission path. IPC G01S 7/524, 15/00. Claim 03/05/2001, publ. 06/27/2001

13. Penkin S.I. Development of low-frequency emitters and their application in technical systems for acoustic tomography of the ocean. Sat "Marine technology." 2001. Vol. 4, pp. 149-166. Vladivostok. Dalnauka.

Claims (1)

A hydroacoustic station with a flexible extended towed acoustic antenna (GPBA) for a hydroacoustic complex (SAC) of submarines (PL), containing a GPBA, a cable tug, current transfer, pre-processing equipment (APO), a unit for the main processing of signals of the noise detection mode (TIP), a remote control control and indication, moreover, GPAA converters are connected via a towing cable and current junction to the inputs of the APO, the outputs of the APO are connected to the input of the main signal processing block of the ШП mode, the block of the main signal processing of the ШП mode in made on the basis of digital technology and is part of the digital computer complex (CVC) HAC, the information output of this unit is connected to the first input of the control and display panel, the control input of this unit is connected to the first output of the control and display panel, characterized in that a cabinet emitting antenna located in the aft part of the submarine, a multi-channel generator device (GU) and a unit for the main processing of echo signals of the sonar mode (GL) were introduced, and the APO output is additionally connected to the input of the unit and the main processing of the GL mode echoes, the outputs of the multi-channel PG are connected to the transducers of the cabinet emitting antenna, the information output of the main GL mode echo processing unit is connected to the second input of the control and display panel, the control input of this unit is connected to the second output of the control and display panel , the input of a multi-channel control unit is connected to the third output of the control and display panel.