RU31455U1 - A device for detecting sonar signals and masking their reflection from a marine moving object - Google Patents

Description

A device for detecting sonar signals and masking their reflection from a marine moving object

The invention relates to sonar technology, and more particularly to sonar masking devices and sonar detection devices.

With the help of sonar signals, whales determine the distance to the whaling vessel and leave this water area, see, for example, M.D. Truskanov, E.V. Shishkova, M.N. Scherbino. New in fishing technique. Literature review. - M .: Food industry. 1967 .-- 136 p. Therefore, it is advisable to mask the echo from the hull and wake of the whaling vessel under marine reverb. As you know, marine reverberation is a random process observed at the receiving point, due to the scattering of the emitted signal from the inhomogeneities of the aquatic environment and the unevenness of its boundaries V.V. Olshevsky. The statistical properties of marine reverb. - M .: Spider, 1966 .-- 208 p. The simulated surface, bottom and volumetric reverberations should be so significant that the whale will not be able to notice a useful echo from the vessel against its background. In addition, the whaling crew should be able to detect the whale's sonar signal.

Known counteraction systems designed to interfere with information extraction systems by emitting interfering signals containing a generator and emitter connected in series see, for example, L. S. Gutkin. Modern electronics and its problems. - M.: Sov.radio, 1980 .-- 83 p. However, such a counteraction is not suitable for masking echo signals from a whaling vessel, since it will more strongly scare away whales.

G 01 S 7/40 G 01 SI 5/58

Known System for modeling the received radar signals reflected from the surface of the earth from US patent No. 3131247, 1964, which contains a series-connected random delay line, a radar transmitter and an indicator. However, this system cannot fully solve the problem of masking the echo signal.

A device is known for actively masking any sounding and dissipating body from the sound waves incident on it by G.D. Malyuzhinets. The simplest model of an absorbing and transparent lattice with feedback. M .: Proceedings of the Acoustic Institute, issue 15, 1971. This device contains a series-connected generator and a surrounding network of receiving-emitting mono-pole and dipole-type electroacoustic transducers, in which the distribution of amplitudes and phases, controlled by masked sound, occurs so that the attenuation of the incident on the body of sound in the corresponding areas of space. However, the technical implementation is associated with exceptional difficulties due to the need to use a very large number of electro-acoustic transducers located at half the sound wavelength, and the need to ensure the distribution of phases and amplitudes with great accuracy.

As a prototype, a counteraction system was selected containing self-propelled or drifting simulators of reflected signals from marine moving objects (MPOs) with receiving and transmitting paths connected in series. They provide distraction for anti-submarine weapons with sonar homing systems A.P. Verzhiklovsky and others. A brief dictionary on radio electronics. - M .: Military Publishing House, 1980 .-- 410 p. However, this prototype device does not provide for camouflage of the most oblique vessel from its whale sonar.

verbal interference. Moreover, the detection refers to the determination of the nature and parameters of the location signal and the determination of coordinates.

To solve this problem, a device is proposed for detecting sonar signals and masking their reflections, containing, like the prototype device from MPO, receiving and radiating sonar paths. The memory blocks of the received hydroacoustic signal are introduced into the device taking into account the Doscher effect, the input of which is connected to the output of the receiving hydroacoustic path, the parallel-connected block for generating the signal for suppressing and distorting the echo signal, the block for simulating the volume reverb, the block for simulating the surface reverb, the block for simulating the bottom reverb, inputs which are connected to the outputs of the memory unit of the received sonar signal taking into account the Doppler effect, and the outputs are connected to the emitting sonar The path also introduced a series-connected block for analyzing the received signal, the input of which is connected to the output of the memory block of the received sonar signal from the Doppler effect, and a block for calculating the signal propagation path and estimating the distance to the signal source, the output of which is connected to the second inputs of the surface reverb simulation blocks and bottom reverb, also introduced a control unit, the clock inputs and clock outputs of which are connected to all units of the device.

The memory block of the received hydroacoustic signal, taking into account the Doppler effect, contains a serially connected random access memory (RAM) of the received sonar signal, the input of which is connected to the receiving sonar path, the echo signal calculation unit and the echo signal RAM, the outputs of which are connected to the inputs of the echo cancellation signal generating unit and the simulation unit volume reverb, surface reverb simulation unit, bottom reverb simulation unit, and received signal analysis unit, t A calculation block has also been introduced.

Doppler frequency shift from the MPO movement, the input of which is connected to the MPO lag, and the output is connected to the block of calculation of the echo signal.

The echo cancellation signal generating unit contains a phase shifter connected in series, the input of which is connected to the input of the received sonar signal memory unit taking into account the Doppler effect, an echo signal memory unit rotated by a ° and a digital-to-analog converter (DAC), the output of which is connected to the input of the emitting sonar path.

Given that the sonar sound source can create a complex signal, another embodiment of the block diagram for generating an echo cancellation signal can contain a narrow-band spectrum analyzer, the input of which is connected to the sonar signal memory block, also contains m parallel-connected phase shifters, the inputs of which are connected to the outputs of the narrow-band spectrum analyzer, also contains a series-connected memory block of the spectral components of the echo signal rotated by a °, the inputs of which are connected to the output E m phase shifters, and a digital to analog converter whose output is connected to the radiating hydroacoustic tract.

The volume reverb simulation unit contains a random delay unit connected in series, the input of which is connected to the output of the received sonar signal memory unit taking into account the Doppler effect, and a digital-to-analog converter, the output of which is connected to the emitting sonar path.

The surface reverb simulation block contains parallel-connected n pairs of adjustable blocks of time delays and random delays, an adder and a digital-to-analog converter, the output of which is connected to the input of the emitting hydroacoustic path, and the inputs of the adjustable time delays are connected to the output of the memory block of the received hydroacoustic signal, the second inputs of all adjustable time

0 delays are connected to the outputs of the block for evaluating the propagation paths of the echo signal; a block of data on sea waves is also introduced, the outputs of which are connected to the second inputs of random delays.

The simulation block of this reverb contains sequentially connected pairs of blocks of adjustable time delays and blocks of random delays, an adder and a digital-to-analog converter, the output of which is connected to the input of the emitting hydroacoustic path, the inputs of the adjustable time delays are connected to the output of the memory block of the received hydroacoustic signal taking into account the Doppler effect, the second the inputs of all adjustable time delays are connected to the output of the block for calculating the propagation paths of signals; ok data on the severity of the seabed in this area, the outputs of which are connected to the second inputs of all n blocks of random delays.

The received hydroacoustic signal analysis unit contains a parallel connected frequency and waveform analysis unit, a signal amplitude analysis unit, the inputs of which are connected to the output of the received hydroacoustic signal memory unit taking into account the Doppler effect, also contains random access memory (RAM), the inputs of which are connected to the analysis unit frequency and waveform, the analysis unit of the amplitude of the signal, and the output is connected to the input of the unit for calculating the propagation paths of the signal and estimate the distance to the signal source .

The block for calculating the propagation paths of the signal and estimating the distance to the source contains a sound velocity meter (speed meter) connected in series, a memory block for the vertical distribution of the sound velocity (VRSS), a block for calculating the signal propagation path, a block for calculating the distance to the signal source, the outputs of the calculation blocks are connected to the inputs of the blocks simulations of surface and bottom reverberation, and the second, third and fourth inputs of the unit for calculating the distance to the signal source are connected respectively to the outputs of the anal unit from the received signal, block

data on sea waves and a block of data on the bottom roughness, the indicator also contains a block of sound attenuation coefficient memory, the output of which is connected to the fifth input of the distance calculation unit to the signal source.

The emitted hydroacoustic path contains an adder, the first, second, third and fourth inputs of which are connected respectively to the outputs of the signal conditioning blocks for suppressing the echo signal, the volume reverb simulation unit, the surface reverb simulation unit, the bottom reverb simulation unit, also contains n parallel connected amplifiers and n emitters masking signal, and the inputs of all n amplifiers are connected to the output of the adder, and the outputs are connected to the inputs of n emitters, respectively.

The unit for calculating the distance to the signal source contains a series-connected unit for determining the acoustic pressure of the received signal, the first input of which is connected to the output of the analysis unit for the received signal, and an equation solving unit, the output of which is connected to the inputs of the surface simulation unit and the bottom reverb simulation unit, and the second input of the unit solving the equation is connected to the output of the sound attenuation coefficient memory block, also contains a memory block of the frequency response sensitivity of the receive path, the output to which is connected to the second input of the unit for determining the acoustic pressure of the received signal, also contains a unit for determining the radius vector of the directivity characteristic (XI) of the receiving system, the input of which is connected to the receiving hydroacoustic path, and the output to the unit for solving the equation, also contains a block for calculating the anomaly factor, whose input is connected to the output of the block for calculating the propagation paths of the signal, and the output to the fourth input of the block for solving the equation.

Another embodiment of the unit for calculating the distance to the signal source contains a parallel-connected unit for determining delays in the arrival of water, a unit for determining delays in reflected rays, a unit for determining

angles of arrival of water rays, the inputs of which are connected to the receiving sonar tract, the MPO echo sounder, the outputs of these blocks and the echo sounder are connected to the first, second, third and fourth inputs of the input unit for calculating the distance according to the angles and time delays of the rays, the input of which is connected to the inputs of the surface simulation unit reverb and volumetric reverb unit.

The technical result of the utility model is to ensure the inability to classify MPO, as well as to ensure detection of the source of the sonar signal.

On Fig shows a block diagram of the proposed device for detecting sonar signals and masking their reflections from a marine moving object.

Figure 2 shows a block diagram of a memory block of a received sonar signal taking into account the Doppler effect.

Fig. 3 shows a block diagram of the formation of an echo cancellation signal.

Figure 4 shows another embodiment of the block diagram of the formation of the signal suppression of the echo signal.

In FIG. 5 is a block diagram of a volume reverb simulation unit.

Figure 6 shows a block diagram of a simulation of surface reverb.

Figure 7 shows a block diagram of a block simulating bottom reverb.

On Fig shows the block analysis of the received sonar signal.

Figure 9 shows a block diagram of a unit for calculating the signal propagation paths and the distance to the signal source.

In FIG. 11 is a block diagram of a unit for calculating a distance to a signal source.

In FIG. 12 shows another embodiment of a block diagram of a unit for calculating a distance to a signal source.

The device for detecting sonar signals and masking their reflection from the MPO contains a serially connected receiving sonar tract 1, a memory unit for the received sonar signal taking into account the Doppler effect 2, a block for generating an echo cancellation signal 3 emitting a sonar tract 4, also contains a parallel connected volumetric reverb simulation unit 5, surface reverb block 6, bottom reverb block 7, the inputs of which are connected to the outputs of block 2, and the outputs with the inputs of block 4, tss it also contains in series a block for analyzing the received signal 8, the input of which is connected to block 2, and a block for calculating the signal propagation paths and estimating the distance to the signal source 9, the output of which with blocks 6 and 7, also contains a control unit 10, whose sync inputs and outputs are connected with all blocks of the device (figure 1).

The memory block of the received sonar signal, taking into account the Doppler effect 2, contains serially connected RAM of the received sonar signal 11, the input of which is connected to the path 1, the calculation block of the echo signal 12, the RAM of the echo signal 13, the output of which is connected to the inputs of blocks 3, 5, 6, 7, 8 also contains a block for calculating the Doppler frequency shift from the MPO 14 movement, the input of which is connected to the MPO lag, and the output - with the second input of block 12 (Fig. 2).

The echo suppression signal generating block 3 contains a phase shifter 15 connected in series, the input of which is connected to the output of block 2, an echo signal memory block rotated by a °, 16, DAC 17, the output of which is connected to the input of block 4 (Fig. 3).

Another embodiment of the block for generating the signal for suppressing the echo signal 3 contains serially connected narrow-band spectrum analyzer 18, the input of which is connected to the input of block 2, w phase shifters 15.1 ... 15, t, the memory block of the spectral components of the echo signal rotated by a °, 16, DAC 17, output which is connected to block 4 (figure 4).

The block simulating volume reverb 5 comprises a random delay block 19, the input of which is connected to the output of block 2, the DAC 20, the output of which is connected to the input of block 4 (Fig. 5).

The block simulating surface reverb 1 and 6 contains sequentially connected n pairs of adjustable delays 21.1, ..., 21.n and random delays 22.1, ..., 22.p, an adder 23, n inputs of which are connected to the outputs of all random delays 22.1, ..., 22.p, DAC 24, the output of which is connected to block 4, also contains a block of data on sea waves 25, and the output of which is connected to the inputs of n random delays 22.1 ,,,., 22, p, the second inputs of n adjustable time delays are connected to the output of block 9 (Fig.6).

The bottom reverb simulation block 7 contains sequentially connected n pairs of adjustable time delays 26.1, ..., 26.p and random delays 27.1 ,, .., 27.p, adder 28, DAC 29, the output of which is connected to the input of block 4, also contains a block of data on the roughness of the bottom 30, the outputs of which are connected to the inputs of random delays 27.1, ..., 27.p, the inputs of the adder 28 are connected to the outputs of random delays 27.1, ..., 27.p, the second inputs and adjustable time delays are connected with the output of block 9 (Fig.7).

The unit for analyzing the received hydroacoustic signal contains a parallel-connected unit for analyzing the frequency and waveform of the signal 31 and the unit for analyzing the amplitude of the signal 32, the inputs of which are connected to the output of unit 2, and the outputs with introduced RAM 33, the output of which is connected to the input of unit 9 (Fig. 8).

The unit for calculating the propagation paths of the signal and the distance to the signal source 9 contains sequentially connected speed meter 34, the memory block VRSZ 35, the unit for calculating the propagation paths of the signal 36, the second, third, fourth and fifth inputs of which are connected to the outputs of blocks 8, 25, 30, 33, the unit for calculating the distance to the signal source 37, the outputs of which are connected to blocks 6 and 7, and the second input to the block 8, indicator 38, also contains a memory block for the sound attenuation coefficient at sea 39, the output of which is connected to the third input of block 37 (Fig. 9).

The emitting hydroacoustic path 4 contains an adder 40, the input of which is connected to blocks 3, 5, 6, 7, and also contains in parallel connected n amplifiers 41.1, ..., 41.p, and n signal maskers 42.1,.,. , 42.p, and the inputs of the amplifiers 41.1, ..., 41.p are connected to the output of the adder 40 (Fig. 10).

The unit for calculating the distance to the signal source 37 contains a series-connected memory unit for the frequency response of the sensitivity of the receiving path 43, a unit for determining the acoustic pressure of the received signal 44, the input of which is connected to the unit 8, a block for solving equation 45, the output of which is connected to blocks 6 and 7, and the second the input with the output of block 39 also contains a block for determining the radius of the vector XN of the signal 46, the input of which is connected to path 1, and the output with block 45 also contains a block for calculating the anomaly factor 47, the input of which is connected with the output of block 36 and the output with the fourth input of block 45 (Fig. 11).

Another embodiment of the unit for calculating the distance to the signal source 37 contains a parallel-connected unit for determining the delay in the arrival of water rays 47, a unit for determining the delay in the reflected rays 48, a unit for determining the angles of arrival of the water rays 49, the inputs of which are connected to the path 1, and an echo sounder 50, the outputs of blocks 47, 48 , 49, 50 are connected to the inputs of the input unit for calculating the distance according to the angles of arrival and the delay times of the rays 51, the output of which is connected to blocks 6 and 7 (Fig. 12).

A device for detecting sonar signals and masking their reflection from MPO (figure 1) works as follows. The receiving hydroacoustic path 1, which includes a receiving hydroacoustic antenna, usually with a steady fan of directivity characteristics, amplifiers and analog-to-digital converters, when a hydroacoustic signal arrives from a whale or other marine inhabitant converts the acoustic signal into an electrical voltage, which is amplified and subjected to sampling and quantization . The reformation about this enters block 2, where the received signal is adjusted taking into account the Doppler effect of your vessel.

In blocks 8 and 9, the received hydroacoustic signal is analyzed and the trajectories of the propagated signal are calculated, and the distance to the signal source is estimated. These data are displayed in block 9 on indicator 38. Thus, the MPO command has the ability to detect a signal source, that is, by the nature and parameters of the received hydroacoustic signal, classify the signal source and determine its coordinates, distance and direction to it, taking into account the receiving directivity.

At the same time, at the beginning of the arrival of the hydroacoustic signal in block 2, in block 3, it is processed to form a signal for active suppression of the echo signal. In addition, in blocks 5, 6 and 7, a simulation of volume, surface, and bottom reverb is performed, which mask the echo signal. This masking signal at the command of the control unit 9 is emitted into the marine environment using the emitting sonar tract 4.

Thus, the MPO command detects the source of the signal and takes measures to prevent the whale from receiving the echo. Therefore, the device solves the problem.

The operation of the memory unit of the received sonar signal taking into account the Doshtler effect 2 (figure 2) is as follows. From block 1, the signal is entered into RAM 11. It must be borne in mind that the echo signal has a frequency shift A / due to the Doppler effect:

+.

where / o - send frequency,

k, US - the speed of movement of the signal source and the MPO, respectively, qk, qc, respectively, the heading angle of the signal source on the MPO and the heading angle of the MPO on the signal source, s - the speed of sound.

Typically, the signal source adjusts the Doppler effect of its course. Therefore, it must be borne in mind that the echo will have a frequency shift.

± 4 / /,

Further, the masking spectrum of the signal is expanded by Af so that the masking signal occurs at the frequencies of both the reflected echo signal and the entire band A / transmission and echo. Physically, this can be explained by the expansion of the spectrum due to different speeds of the scatterers. As you know R. Faure. Theoretical Model of Reverberation Noise. JASA, vol. 2, 1964 for a bell-shaped signal, the broadening of the reverberal spectrum has the form

AF. + 16 /.

where T is the pulse duration,

Oy dispersion of the speeds of the scatterers.

In practice, V.I. Paderno, A.I. Paperno. On the estimation of the speed of movement of scatterers by measuring the frequency spectrum of marine reverberation. The Second All-Union School-Workshop on Statistical Hydroacoustics. Novosibirsk: Nauka, 1971. - p. 192-196 dispersion of velocity of motion rav Cos cos q

R D J2 0 2

seeders is in the range of 0.2-3 m-s. It can have a slightly greater value in a school of fish. However, in block 2, the spectrum is always expanded to A, although this may be somewhat more than realistic for the given region.

In the block of calculation of the echo signal 12 takes into account the sensitivity of the receiving path and the equivalent radius of reflection from the MPO. The final data is entered into the RAM echo 13.

As already mentioned, simultaneously with the beginning of the reception of the hydroacoustic signal in block 3 (Fig. 3), the formation of a signal begins to suppress the echo signal. For this, a signal is generated in blocks 15 and 16, turned by a °, where - °. Here 9 ° is the phase of the padawash, its hydroacoustic signal, φ ° is the phase of the reflected hydroacoustic signal.

This signal, taking into account the sensitivity of the radiation path 4, is entered into the DAC 17 and emitted into the water so that the antiphase addition of the reflected and suppressive waves occurs. It is usually not possible to completely suppress the echo, but it is significantly distorted. If the sonar signal is complex, then a narrow-band spectrum analyzer 18 is used, after which the phase is rotated by a ° of each of the spectral components; they are then emitted into the water (Fig. 4).

Block 5 imitates volumetric reverb (figure 5). For this, a random delay unit 19 and DAC 20 are used. A feature is that the simulation of volume reverb is carried out at the frequency of the echo signal shifted by the Doppler effect. This does not allow the receiving signal to isolate it in band-pass spectral analysis. In this case, the intensity of the masking echo is selected proportional to the power radiated by the whale with a decrease proportional to time in the second degree. Management is carried out by block 10.

thirteen

the excitement of the sea. At the same time, in delays 21.1, ..., 21.p and 26.1, ..., 26.p, the ray propagation paths are taken into account so that these reverberations are more like-like. Along with this, but to the command of block 10, the geometry of the location of the signal source and the MPO is distorted. Both surface and bottom reverberations are proportional to the pitches emitted by the signal source. Surface reverb decreases proportionally to time in the third degree, and bottom reverberation to the fourth. Unit 10 controls.

The bottom reverb is simulated in block 7 (Fig.7). At the same time, the data of block 30 about the bottom shear is read. Also considering block data

9o the signal propagation path and the distance to the signal source. Propagation geometry of the signal source and MPO at the command of the block

10 may be deliberately distorted.

The operation of the analysis unit received hydroacoustic signal 8 (Fig) is to analyze the frequency and waveform (block 31), as well as the amplitude of the signal (block 32). This data is stored in RAM 33 and then used in block 9.

The work of the unit for calculating the propagation paths of the signal and the distance to the signal source 9 is carried out as follows. Using the speed gauge 34, lowered from the side of the vessel, determine the vertical section of the speed of sound (ARW) in the marine environment. The data are entered into the memory block of the VRSC 35. According to the data on the VRSS, as well as the data on the sea waves (block 25) and the roughness of the bottom (block 30), taking into account the nature of the signal (block 8), in block 36 the signal propagation paths are calculated, and in the block 37, taking into account the attenuation coefficient data from block 39, the distance to the signal source is calculated. This information and information about the parameters of the echo signal is displayed on the indicator 38 (Fig.9).

The work of the emitting sonar tract 4 (Fig. 10) is as follows. The signal to suppress the echo signal (from block 3) and simulate volumetric, surface and bottom reverb from blocks 5, 6, 7

enters the adder 40. Block 40 is a generator of masking signals that are amplified in amplifiers 41.1, ..., 41.p and are emitted into the marine environment by emitters of a masking signal 42.1, ..., 42.p. The emitters 42.1, ..., 42.p are located both along the MPO hull in the fairings, and on the fishing gear towed behind the vessel. This creates the spatial sound of masking sounds.

The unit for calculating the distance to the signal source 37 may have two main versions. The first (Fig. I) is based on the fact that there is a priori information about the acoustic pressure of the hydroacoustic signal emitted by the source of this signal. In addition, using block 8 and sensitivity data of the receiving path (block 43), there is information about the acoustic pressure of the received signal Rpr. The presence of signal propagation paths in block 36 allows in block 47 to calculate the anomaly factor Af by methods and programs known in hydroacoustics. Then the distance to the signal source g can be determined from the equation

; .. 100.05J / ()

where R ((p) is the radius of the directional vector at the source of the signal.

Data on (j) is available in block 39. Thus, the first version of block 37 solves the problem.

The second construction of the unit for calculating the distance to the signal source 37 is based on the laws contained in the propagation of the signal, namely, the delays between the beams and the times of their arrival, which is recorded in blocks 47, 48, 49, 50. In block 51 according to this data, and in in particular, from the totality of these data, the distance r to the signal source is determined (Fig. 12). ir

path 1 and radiating path 4 are described in the books of M.D.Smaryshev, Yu.Yu. Dobrovolsky. Hydroacoustic antennas. Directory. - L .: Shipbuilding, 1984. - p. 226-228 and A.P. Yevtyutov et al. Handbook of sonar. - L .: Shipbuilding, 1988. - p. 18-26.

Questions of imitation of reverberation can be gleaned, for example, from the book of V.V. Olshevsky. Statistical methods in sonar. - L. .. Shipbuilding, 1973.-s. 172.

The construction of narrow-band spectrum analyzers is known, for example, from the book of S.P. Marple - ml. Digital spectral analysis and its applications. M.: World, 1990.-S. 560.

The construction of time delays with randomly changing parameters is known, for example, from the book of G.P. Tverskoy, G.P. Terentyev, I.P. Kharchenko. Echo simulators for shipborne radar. -L.: Shipbuilding, 1973.- 142-164 p.

Devices for simulating echo signals received by a sonar station are described in the book by V.Yu. Rall and others. Simulators and simulators of the Navy. M .: Military Publishing, 1969 .-- 216 p.

Thus, the proposed device for detecting and masking reflections of sonar signals from a whaling vessel, completely solves the problem.

Claims (12)

1. Device for detecting sonar signals and masking their reflection from a marine moving object, containing serially connected receiving and emitting sonar paths, characterized in that a memory block of the received sonar signal is introduced into it taking into account the Doppler effect, the input of which is connected to the output of the sonar receiver are also introduced in parallel connected block of the formation of the signal suppression of the echo signal, blocks simulating volumetric, surface and bottom reverb, output which are connected to the inputs of the emitting hydroacoustic path, a series-connected block for analyzing the received signal is also introduced, the input of which is connected to the output of the memory block of the received signal, the output of which is connected to the second inputs of the surface and bottom reverb simulating blocks, and a control device is introduced, whose sync inputs and clock outputs are connected to all units of the device. 2. A device for detecting sonar signals and masking their reflection from a marine moving object according to claim 1, characterized in that the memory unit of the received sonar signal, taking into account the Doppler effect, contains serially connected random access memory of the received sonar signal, an echo signal calculation unit, random access memory echo signal, the outputs of which are connected to the inputs of the signal conditioning blocks to suppress the echo signal and simulate the volume, surface and bottom Reverb and received signal analysis unit also introduced unit calculating Doppler frequency shift by movement of the vessel, which entrance is connected with a lag vessel, and an output coupled to calculating unit echo. 3. A device for detecting sonar signals and masking their reflection from a marine moving object according to claim 1, characterized in that the signal conditioning unit for suppressing the echo signal contains phase shifters connected in series, the input of which is connected to the output of the received sonar signal memory unit taking into account the Doppler effect, the memory block of the echo signal rotated by α °, and a hydro-analog converter, the output of which is connected to the input of the emitting sonar path, and α is the phase difference of the incident and reflected sonar signals. 4. A device for detecting sonar signals and masking their reflection from a marine moving object according to claim 1, characterized in that the signal generating unit for suppressing the echo signal contains a narrow-band spectrum analyzer, the input of which is connected to the output of the memory unit of the received sonar signal taking into account the Doppler effect, contains m parallel-connected phase shifters, the inputs of which are connected to the outputs of a narrow-band spectrum analyzer, also contains a series-connected spectral memory block of the echo signal components rotated by α °, m inputs of which are connected to m phase shifters, and a digital-to-analog converter, the output of which is connected to the emitting hydroacoustic path. 5. A device for detecting sonar signals and masking their reflection from the marine moving object of claim 1, characterized in that the volume reverb simulation unit contains a random delay unit connected in series, the input of which is connected to the output of the received sonar signal memory unit taking into account the Doppler effect, and digital-to-analog converter, the output of which is connected to the emitting sonar tract. 6. A device for detecting sonar signals and masking their reflection from a marine moving object according to claim 1, characterized in that the surface reverb simulation unit contains parallel connected n pairs of blocks of adjustable time delays and blocks of random delays, an adder and a digital-to-analog converter, the output of which is connected with the input of the emitting sonar path, and the inputs of adjustable time delays are connected to the output of the memory unit of the received sonar signal, taking into account the effect of Additional of the player, the second inputs of all n adjustable time delays are connected to the block for estimating the propagation paths of the echo signal, a data block about sea waves is introduced, the output of which is connected to the second inputs of all random delays, and the outputs of all random delays are connected to the inputs of the adder. 7. A device for detecting sonar signals and masking their reflection from a marine moving object according to claim 1, characterized in that the bottom reverb simulation unit contains n pairs of adjustable time delays and random delays connected in series, an adder and a digital-to-analog converter, the output of which is connected to the input emitting sonar path, and the input of the first adjustable time delay is connected to the output of the memory block of the received sonar signal taking into account the Doppler effect, sec e inputs of all time delays controlled unit connected to the trajectories of the echo estimation, also introduced on the data block indentation in the bottom of the sea water areas, the outputs of which are connected to second inputs of n random delay. 8. The device for detecting sonar signals and masking their reflection from a marine moving object according to claim 1, characterized in that the received sonar signal analysis unit contains a parallel connected frequency and waveform analysis unit, a signal amplitude analysis unit, the inputs of which are connected to the output of the unit the memory of the received sonar signal, taking into account the Doppler effect, also contains a random access memory, the inputs of which are connected to the analysis unit of the frequency, shape and amplitude of the signals, and you the stroke is connected to the input of the block for calculating the propagation paths of the echo signal and estimating the distance to the signal source. 9. A device for detecting sonar signals and masking their reflection from a marine moving object according to claim 1, characterized in that the unit for calculating the signal propagation paths and the distance to the source contains a sound velocity meter (speed meter) connected in series, a memory block for the vertical distribution of sound velocity, block for calculating the paths of signal distribution, block for calculating the distance to the source and indicator, outputs of block for calculating the paths of signal distribution and block for calculating the distance to the source connected to the inputs of the surface and background reverb simulation blocks, and the second, third, and fourth inputs of the signal trajectory calculation unit are connected respectively to the outputs of the received signal analysis unit of the sea wave data block and the bottom irregularity data block, also contains an indicator and a damping coefficient memory unit sound, the output of which is connected to the fifth input of the unit for calculating the distance to the signal source, and the third input of the unit for calculating the distance to the signal source is connected to the received analysis unit signal. 10. A device for detecting sonar signals and masking their reflection from a marine moving object according to claim 1, characterized in that the emitting sonar path includes an adder, the first, second, third, fourth inputs of which are connected to the outputs of the signal conditioning blocks for suppressing the echo signal, blocks simulations of volumetric, surface and bottom reverberation, also contains n parallel-series connected amplifiers and hydro-acoustic emitters of the masking signal, and the inputs of the amplifiers are connected with the output of the adder. 11. A device for detecting sonar signals and masking their reflection from a marine moving object according to claims 1 and 9, characterized in that the unit for calculating the distance to the signal source contains sequentially connected memory unit for the frequency response of the sensitivity of the receiving path, the unit for determining the acoustic pressure of the received signal, the second input of which is connected to the received signal analysis unit, an equation solving unit, the output of which is connected to the inputs of the surface and bottom reverb simulation blocks, and the indicator also contains a block for calculating the anomaly factor, the input of which is connected to the output of the block for calculating ray paths, and the output to the block for solving the equation, also contains a block for determining the radius vector of the directivity characteristics of signal reception, and the output is connected to the fourth input of the block for solving the equation. 12. A device for detecting sonar signals and masking their reflection from a marine moving object according to claims 1 and 9, characterized in that the unit for calculating the distance to the signal source contains parallel-connected echo sounder and blocks for determining delays in the arrival of reflected rays, determining angles of arrival of water rays, the inputs of these blocks are connected to the outputs of the receiving sonar tract, and the outputs, respectively, with the first, second, third, fourth inputs of the input unit for calculating the distance in angles and times of delay of rays, the output of which is connected to the inputs of indicator blocks and simulation blocks of surface and bottom reverb.