Method for improving lethality of ammunition
By transplanting small-diameter electronic time fuze to the head of the ammunition and adding additional explosives to the tail of the ammunition, the information receiving circuit of the fuze is improved and the wave intercepting processing unit is added, the problem that the fuze cannot receive the detonation time and mode of action is solved, and the normal control and lethality of the ammunition are achieved.
Patent Information
- Application Number
- CN202510166815.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-05-13
AI Technical Summary
In the prior art, when the small-caliber electronic time fuze is set at the head of the ammunition, it cannot normally receive the complete detonation time and mode of action, resulting in insufficient lethality of the ammunition.
The small-diameter electronic time fuze is transplanted into the idle space of the ammunition head, and additional explosives are added to the free space at the tail of the ammunition. At the same time, the information receiving circuit of the fuze is improved, the jump-transformed encoding signal received by the information receiving coil is amplified, and the intercepting processing unit is set between the signal processing unit and the decoding processing unit to ensure the accurate decoding of the signal.
By improving the information receiving circuit and adding a wave intercepting processing unit, it is ensured that the small-diameter electronic time fuze can receive a complete detonation time and mode of action, normal control of the ammunition is achieved, and the lethality of the ammunition is stably improved.
Smart Images
Figure CN119983960A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of weapon technology, and in particular to a method for improving the lethality of ammunition. Background Art
[0002] The small-caliber electronic time fuse (hereinafter referred to as the fuse) of a certain type of ammunition (such as small-caliber artillery shells, mortar shells, rifle grenades, etc.) is usually installed at the tail of the ammunition, such as Figure 1 As shown, this type of ammunition usually has a certain amount of idle space in the head. Technicians try to transplant the fuze set at the tail of the ammunition into the idle space of the ammunition head, and add additional explosives in the free space at the tail of the ammunition to make use of the idle space in the ammunition head to improve the lethality of this type of ammunition.
[0003] However, in subsequent experiments, it was found that during the firing process of ammunition with the fuze set at the head, once the ammunition head passes through the velocity coil of the muzzle setting device, the fuze will also pass through the velocity coil immediately, with an extremely short time interval. As a result, the detonation time and mode of action have not yet been transmitted through the jump coding signal, and the fuze will leave the effective range of the magnetic field generated by the transmitting coil in advance, resulting in incomplete detonation time and mode of action received by the fuze, and unable to normally control the detonation time and mode of action of the ammunition, which has a significant impact on the lethality of the ammunition and fails to achieve the expected goal of improving the lethality. Summary of the invention
[0004] The purpose of the present invention is to provide a method for improving the lethality of ammunition in view of the corresponding deficiencies of the prior art. By transplanting a small-caliber electronic time fuze into the idle space of the ammunition head, adding additional explosives in the vacant space at the tail of the ammunition, and improving the information receiving circuit of the small-caliber electronic time fuze, the small-caliber time fuze can receive the complete detonation time and action mode, and normally control the ammunition, thereby achieving the expected goal of enhancing the lethality of the ammunition.
[0005] The objective of the present invention is achieved by adopting the following scheme: A method for improving the lethality of ammunition comprises the following steps: 1) Move the fuze at the tail of the ammunition into the free space at the head of the ammunition, and add additional explosives in the free space at the tail of the ammunition; 2) Improve the information receiving circuit of the fuze, amplify the jump coding signal received by the information receiving coil L1 in the information receiving circuit, and make the amplified jump coding signal accurately recognized by the fuze.
[0006] Preferably, the improved information receiving circuit includes an induction receiving unit, a signal processing unit, and a decoding processing unit. The information receiving coil L1 is the signal input end of the induction receiving unit, the signal output end of the induction receiving unit is connected to the signal input end of the signal processing unit, and the signal output end of the signal processing unit is connected to the signal input end of the decoding processing unit.
[0007] Preferably, the induction receiving unit includes an information receiving coil L1, a capacitor C1, a capacitor C2, a resistor R1, and a resistor R2, one end of the information receiving coil L1, the capacitor C2, and the resistor R2 are all connected in parallel to the signal output end of the induction receiving unit, and the other ends of the information receiving coil L1, the capacitor C2, and the resistor R2 are all grounded through the resistor R1, and the resistor R1 is connected in parallel with the capacitor C1.
[0008] Preferably, the inductance of the information receiving coil L1 is 40 μH, the capacitance value of the capacitor C1 is 10 nF, the capacitance value of the capacitor C2 is 100 pF, the resistance value of the resistor R1 is 510 Ω, and the resistance value of the resistor R2 is 4.3 kΩ.
[0009] Preferably, the signal processing unit includes a capacitor C3, a capacitor C4, a resistor R3, a resistor R4, and a resistor R5, one end of the capacitor C3 is connected to the signal output end of the induction receiving unit, the other end of the capacitor C3 is connected in parallel to the signal input end of the decoding processing unit through the resistor R3 and one end of the resistor R4 and the resistor R5, the other end of the resistor R4 and one end of the capacitor C4 are both connected to a power supply, and the other end of the resistor R5 and the other end of the capacitor C4 are both grounded.
[0010] Preferably, a wave clipping processing unit is provided between the signal processing unit and the decoding processing unit, for determining the high level threshold of the transition coding signal, and clipping and decoding the original coding waveform of the transition coding signal during the ammunition firing process.
[0011] Preferably, the wave cutting processing unit includes a diode D1, a resistor R6, a resistor R7, and a resistor R8. The positive electrode of the diode D1 is connected to the signal output port of the signal processing unit, the negative electrode of the diode D1 and one end of the resistor R6 are both connected in parallel to the signal input port of the decoding processing unit, and the other end of the resistor R6 is grounded through the resistor R8 and connected to the power supply through the resistor R7.
[0012] Preferably, the original coded waveform of the transition coded signal is cut and decoded during the ammunition firing process, comprising the following steps: S1) collecting the transition coding signal emitted by the transmitting coil, and using the waveform of the transition coding signal as the original coding waveform; S2) using a chopped wave processing unit to cut off the waveform whose level value is lower than the high level threshold in the original coded waveform to form a chopped wave coded waveform; S3) using a decoding processing unit to simultaneously decode the chopped coded waveform and the original coded waveform, and to fuse the decoding results of the chopped coded waveform and the original coded waveform to obtain a decoding result of the transition coded signal.
[0013] Preferably, in step S3), the specific method of using the decoding processing unit to simultaneously decode the chopped coded waveform and the original coded waveform, and fusing the decoding results of the chopped coded waveform and the original coded waveform to obtain the decoding result of the transition coded signal includes: S3-1) setting a decoding result sequence for recording the decoding result of the chopped coded waveform and the decoding result of the original coded waveform; S3-2) Input the chopped coded waveform and the original coded waveform into the decoding processing unit respectively, and use the decoding processing unit to decode the chopped coded waveform and the original coded waveform at the same time, and record the decoding results using the decoding result sequence in the following manner: ① If the level value of the pulse sequence of the chopped wave coded waveform is greater than 0, the decoding result of the chopped wave coded waveform is recorded in the decoding sequence; ② If the level value of the pulse sequence of the chopped wave coded waveform = 0, the decoding result of the original coded waveform is recorded in the decoding sequence; S3-3) Using the decoding result sequence obtained in step S3-2) as the decoding result of the original coded waveform.
[0014] Preferably, the specific decoding method includes: SS1) using the decoding processing unit to sequentially calculate the time intervals of each adjacent pulse sequence in the coded waveform to form a time interval number set; SS2) Compare the first and last two adjacent time intervals in the time interval number set, and divide the continuous pulse array in the following way to obtain several continuous pulse arrays: If the previous time interval is equal to the next time interval, then the two pulse sequences corresponding to the previous time interval and the two pulse sequences corresponding to the next time interval are continuous pulse sequences and are in the same continuous pulse array; If the previous time interval is ≠ the next time interval, then the two pulse sequences corresponding to the previous time interval and the two pulse sequences corresponding to the next time interval are discontinuous pulse sequences and are in different continuous pulse arrays; SS3) Count the number of pulses in each continuous pulse array respectively, and decode each continuous pulse array according to the following rules to obtain several decoding information: ① If the number of pulses in a continuous pulse array is A, the continuous pulse array is decoded as "1"; ② If the number of pulses in a continuous pulse array is B, the continuous pulse array is decoded as "0"; ③ If the number of pulses in a continuous pulse array is C, the continuous pulse array is decoded as the "encoding start position"; SS4) Sorts the decoded information according to the order of the corresponding continuous pulse arrays in the coded waveform, and uses the sorting result as the decoded information of the transition coded signal.
[0015] The beneficial effects of the present invention are as follows: ① The present invention improves the information receiving circuit of the fuze and amplifies the jump coded signal received by the information receiving coil L1 in the information receiving circuit. After the information receiving coil L1 exceeds the effective magnetic field range of the transmitting coil, the weak jump coded signal received by the information receiving coil L1 can be amplified, so that the low-amplitude segment coded waveform in the jump coded signal can be accurately identified, and then the information transmission of the detonation time and the action mode can be continued, so as to ensure the integrity of the detonation time and the action mode received by the small-caliber electronic time fuze; ② The present invention provides a wave clipping processing unit between the signal processing unit and the decoding processing unit, and during the ammunition firing process, the original coded waveform of the transition coded signal is clipped by the wave clipping processing unit, so that the high-amplitude segment coded waveform and the overshoot in the amplified transition coded signal can be separated as much as possible, and the overshoot can be prevented from being determined as a valid level, thereby interfering with the recognition of the high-amplitude waveform level, so that the high-amplitude coded waveform of the transition coded waveform cannot be correctly decoded; ③ The present invention can decode the detonation time and action mode of the small-caliber electronic time fuze contained in the jump coding signal in a short time by simultaneously decoding the chopped wave coding waveform and the original coding waveform, so that the small-caliber electronic time fuze can quickly complete the setting and preparation work to ensure that the fuze can be detonated at the correct time.
[0016] The advantage of the present invention is that, by adding an additional explosive at the tail of the ammunition, improving the information receiving circuit of the small-caliber electronic time fuze, and adding a chopped wave processing circuit, it is possible to ensure that the detonation time and action mode received by the small-caliber electronic time fuze are complete and correct, thereby controlling the ammunition normally, avoiding abnormal conditions such as premature detonation, delayed detonation, or even inability to detonate the ammunition, and stably improving the lethality of the ammunition, so that the ammunition can cause greater damage to the target at the set detonation time and action mode, thereby increasing the applicable scenarios of the ammunition. Glossary
[0017] Small-caliber electronic time fuze: A small-caliber electronic time fuze is an electronic fuze whose action mode and detonation time are controlled by an electronic movement. The small-caliber electronic time fuze described in the present invention is arranged at the tail of the ammunition, and is used to control the detonation time and action mode of the ammunition. When the head of the ammunition passes through the speed measuring coil of the muzzle setting device, the muzzle setting device will calculate the detonation time and action mode of the small-caliber electronic time fuze according to the speed of the ammunition, the combat environment of the ammunition and the target position within a fixed time, and transmit this information in the form of a jump coded signal to the information receiving coil of the small-caliber electronic time fuze through the transmitting coil of the muzzle setting device, and transmit it to the information receiving circuit of the small-caliber electronic time fuze.
[0018] Information receiving circuit: is an electronic circuit whose core function is to capture, process and convert signals transmitted from the outside into information forms that can be understood and used by the system. The information receiving circuit in the present invention is mainly responsible for receiving and processing the jump coded signal emitted by the transmitting coil, and converting it into information such as the detonation time and action mode of the small-caliber electronic time fuse.
[0019] Transition coding: Transition coding is a type of coding method that uses signal level transitions to represent data. Common ones include Manchester coding and Miller coding. Transition coding signals are signals generated using transition coding methods. Transitions (jumps) of signal levels are used to carry and represent information. Under different transition coding rules, the rising or falling edge of the signal level at a specific moment corresponds to different binary data values. Transition coding waveforms are graphs that use signal level transitions to intuitively show how the voltage of a transition coding signal changes over time.
[0020] Muzzle setting device: It is an important part of the artillery system. It transmits specific parameter information to the ammunition fuze at the moment of artillery firing or very shortly before firing through induction, contact or wireless communication. In the present invention, the parameter information transmitted is mainly the action time and action mode of the small-caliber electronic time fuze.
[0021] Overshoot: refers to the phenomenon that a signal exceeds its final stable value during its change process. Taking a voltage signal as an example, when a signal changes rapidly from one level value to another, ideally, the signal should instantly reach the target level and stabilize. However, in actual circuits, due to factors such as parasitic inductance and capacitance, the signal will first rush through the target level and then gradually stabilize to the final value. This part that exceeds the target level is overshoot. For example, in a digital circuit, when a square wave signal jumps from a low level to a high level, the voltage may be temporarily higher than the target high level value, and then fall back to a stable high level.
[0022] Signal processing unit: also called detection unit, is a key part of electronic equipment such as communication systems. Its function is opposite to that of the modulation circuit, which is to restore the original modulated signal (baseband signal) from the modulated signal. The modulated signal is usually obtained by modulating the original signal (such as low-frequency signals such as audio and video signals) on the high-frequency carrier.
[0023] Decoding processing unit: a device or chip that can parse and restore encoded data or signals. It converts encoded and compressed signals or data into original forms that can be directly processed and presented by the device based on specific coding standards and algorithms. It is widely used in consumer electronics, communications, security monitoring and other fields.
[0024] Information receiving coil: It is actually an induction receiving coil, which is a device for receiving electromagnetic information. In the present invention, when the alternating magnetic field generated by the transmitting coil passes through the information receiving coil, an induced electromotive force will be generated in the information receiving coil, and then an induced current will be generated. The signal carried by this induced current contains information such as the detonation time and action mode of the small-caliber electronic time fuse emitted by the transmitting coil. By detecting and processing the induced current, the corresponding information can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a schematic diagram of the location of ammunition and launching coil. Figure 1 a is before the ammunition is upgraded. Figure 1 b is after the ammunition is modified and upgraded; Figure 2 is a schematic diagram of the enlarged transition coding waveform in the present invention, Figure 2 Middle: 1 is the dock pulse group, 2 is the binary '1' pulse group, 3 is the binary '0' pulse group, and 4 is the overshoot; Figure 3 is a schematic diagram of a decoding circuit module of this embodiment, Figure 3 a is the schematic diagram of the original decoding circuit module. Figure 3 b is a schematic diagram of a decoding circuit module with a chopping processing circuit added; Figure 4 This is a schematic diagram of the original coding waveform of this embodiment; Figure 5 This is a schematic diagram of the chopped wave coding waveform of this embodiment; Figure 6 is a flow chart of the method of the present invention; Figure 7 is the circuit schematic diagram of this embodiment, Figure 7 a is the circuit after signal amplification through component parameter adjustment. Figure 7 b is a circuit with an added chopping processing unit. DETAILED DESCRIPTION
[0026] like Figures 2 to 7 As shown, a method for improving the lethality of ammunition comprises the following steps: 1) Move the fuze at the tail of the ammunition into the free space at the head of the ammunition, and add additional explosives in the free space at the tail of the ammunition; 2) Improve the information receiving circuit of the fuze, amplify the jump coding signal received by the information receiving coil L1 in the information receiving circuit, and make the amplified jump coding signal accurately recognized by the fuze.
[0027] According to the above method, the following examples are made: 1) Use materials with certain magnetic conductivity to make the projectiles of the ammunition (this can improve the stability of the ammunition in receiving electromagnetic signals to a certain extent), and transplant the fuze set at the tail of the ammunition into the idle space at the head of the ammunition, and then add additional explosives in the empty space at the tail of the ammunition; However, experiments have found that due to the forward movement of the fuze, the flight time of the fuze within the effective magnetic field range of the transmitting coil is no longer sufficient to fully transmit the detonation time and mode of action to the information receiving coil of the fuze. When the information receiving coil exceeds the effective magnetic field range of the transmitting coil, the jump coding signal emitted by the transmitting coil will rapidly decay, making it difficult to accurately identify the low-amplitude waveform in the jump coding signal received by the information receiving coil, and thus unable to continue information transmission, resulting in incomplete detonation time and mode of action received by the fuze, and unable to normally control the detonation time and mode of action of the ammunition, resulting in premature detonation, delayed detonation, and failure to detonate, which has a significant impact on the lethality of the ammunition.
[0028] Therefore, in this embodiment, an attempt is made to improve the information receiving circuit of the fuze to ensure the integrity of the detonation time and action mode received by the fuze. The specific contents are as follows: 2) Improve the information receiving circuit of the fuze, amplify the jump coding signal received by the information receiving coil L1 in the information receiving circuit, and make the amplified jump coding signal accurately recognized by the fuze.
[0029] In this embodiment, the improved information receiving circuit includes an induction receiving unit, a signal processing unit, and a decoding processing unit. The information receiving coil L1 is the signal input end of the induction receiving unit, the signal output end of the induction receiving unit is connected to the signal input end of the signal processing unit, and the signal output end of the signal processing unit is connected to the signal input end of the decoding processing unit. Figure 3 As shown in a.
[0030] The circuit diagram of the improved information receiving circuit is as follows: Figure 7 As shown in a, the specific structures of the sensing receiving unit and the signal processing unit are as follows: ① The induction receiving unit includes an information receiving coil L1, a capacitor C1, a capacitor C2, a resistor R1, and a resistor R2. One end of the information receiving coil L1, the capacitor C2, and the resistor R2 are all connected in parallel to the signal output end of the induction receiving unit. The other ends of the information receiving coil L1, the capacitor C2, and the resistor R2 are grounded through the resistor R1, and the resistor R1 is connected in parallel with the capacitor C1. The inductance of the information receiving coil L1 is 40 μH, the capacitance of the capacitor C1 is 10 nF, the capacitance of the capacitor C2 is 100 pF, the resistance of the resistor R1 is 510 Ω, and the resistance of the resistor R2 is 4.3 kΩ. ② The signal processing unit includes capacitor C3, capacitor C4, resistor R3, resistor R4, and resistor R5. One end of the capacitor C3 is connected to the signal output end of the induction receiving unit, and the other end of the capacitor C3 is connected in parallel to the signal input end of the decoding processing unit through resistor R3, resistor R4, and one end of resistor R5. The other end of the resistor R4 and one end of the capacitor C4 are both connected to the power supply, and the other end of the resistor R5 and the other end of the capacitor C4 are both grounded.
[0031] The capacitance value of the capacitor C3 is 1 nF, the capacitance value of the capacitor C4 is 100 pF, the resistance value of the resistor R3 is 200 Ω, the resistance value of the resistor R4 is 620 Ω, and the resistance value of the resistor R5 is 300 Ω.
[0032] Table 1 Parameters of components of information receiving circuit Components L1 C1 C2 C3 C4 R1 R2 R3 R4 R5 U1 After transformation 40μH 10nF 100pF 1nF 100pF 510Ω 4.3kΩ 200Ω 620Ω 300Ω C8051F410 Before renovation 15μH 10nF 270pF 1nF 100pF 510Ω 10kΩ 200Ω 620Ω 300Ω C8051F410 It has been found through experiments that the above improvements to the information receiving circuit can amplify the jump coding signal received by the information receiving coil, so that the low-amplitude segment waveform in the jump coding signal can be accurately identified, thereby continuing the signal transmission. However, during the experiment, when decoding the amplified jump coding signal, it was found that the jump coding signal containing the low-amplitude segment coding waveform, the high-amplitude segment coding waveform and the overshoot, after amplification, the instantaneous level of the overshoot is similar to the level of the high-amplitude segment waveform (unamplified) of the original jump coding waveform, and will be misjudged as a valid level change, thereby interfering with the decoding of the high-amplitude segment waveform, making the decoded detonation time and action mode wrong, resulting in the ammunition not being able to detonate and act at the expected time and mode, and causing abnormal conditions such as premature detonation, delayed detonation, or even failure to detonate.
[0033] Therefore, in this embodiment, a clipping processing unit is added to clip the amplified transition coding waveform so that the amplified transition coding waveform can be correctly decoded. The specific contents are as follows: A chopped wave processing unit is provided between the signal processing unit and the decoding processing unit to determine the high level threshold of the transition coding signal, such as Figure 3b, and the original coded waveform of the jump coded signal is cut and decoded during the ammunition firing process. The chopped wave processing unit includes a diode D1, a resistor R6, a resistor R7, and a resistor R8. The positive electrode of the diode D1 is connected to the signal output port of the signal processing unit, the negative electrode of the diode D1 and one end of the resistor R6 are connected in parallel to the signal input port of the decoding processing unit, and the other end of the resistor R6 is connected to the ground through the resistor R8 and to the power supply through the resistor R7. Figure 7 The diode D1 is of type 1N60, the resistance of the resistor R6 is 1 kΩ, the resistance of the resistor R7 is 10 kΩ, and the resistance of the resistor R8 is 510 Ω.
[0034] Table 2 Component parameters of the chopping processing unit Component name R6 R7 R8 D1 Specification 1kΩ 10kΩ 510Ω 1N60 It is worth noting that the diode D1 included in the wave-cutting processing unit can be replaced by a component with the same waveform cutting function (such as an integrated operational amplifier, a triode, etc.) to cut the original coded waveform of the jump coded signal during the ammunition firing process, so that the amplified jump coded signal can be accurately identified by the fuze. In addition, by setting the parameter values of the components included in the wave-cutting processing unit, the value range of the high-level threshold can be determined. In this embodiment, the value range of the high-level threshold determined according to the parameter values of the components included in the wave-cutting processing unit is 150±10mV.
[0035] In this embodiment, the original coded waveform of the jump coded signal is cut during the ammunition firing process, including the following steps: S1) collects the jump coding signal emitted by the transmitting coil, and uses the waveform of the jump coding signal as the original coding waveform, such as Figure 4 As shown; S2) The waveform whose level value is lower than the high level threshold in the original coded waveform is cut off by using the chopped wave processing unit to form a chopped wave coded waveform, such as Figure 5 As shown; In this embodiment, the length of the truncated coded waveform is different from that of the original coded waveform, but they are approximately synchronized, which facilitates simultaneous decoding operations and direct integration of the decoded data. This can reduce the decoding time of the small-caliber electronic time fuze and speed up the setting of information such as the detonation time and action mode of the small-caliber electronic time fuze.
[0036] S3) Using the decoding processing unit to simultaneously decode the chopped coded waveform and the original coded waveform, and fusing the decoding results of the chopped coded waveform and the original coded waveform to obtain the decoding result of the transition coded signal includes: S3-1) setting a decoding result sequence for recording the decoding result of the chopped coded waveform and the decoding result of the original coded waveform; S3-2) Input the chopped coded waveform and the original coded waveform into the decoding processing unit respectively, and use the decoding processing unit to decode the chopped coded waveform and the original coded waveform at the same time, and record the decoding results using the decoding result sequence in the following manner: ① If the level value of the pulse sequence of the chopped wave coded waveform is greater than 0, the decoding result of the chopped wave coded waveform is recorded in the decoding sequence; ② If the level value of the pulse sequence of the chopped wave coded waveform = 0, the decoding result of the original coded waveform is recorded in the decoding sequence; S3-3) Using the decoding result sequence obtained in step S3-2) as the decoding result of the original coded waveform.
[0037] In this embodiment, it is also possible to adopt a method of fusing the continuous pulse group sequence of the chopped wave coded waveform and the original coded waveform, that is, replacing a part of the pulse sequence of the original coded waveform (that is, the pulse group sequence corresponding to the chopped wave coded waveform and the original coded waveform) with the pulse sequence group of the chopped wave coded waveform to obtain new continuous pulse group sequence information, and then decode the new continuous pulse group sequence information into binary number information as the final decoding result.
[0038] In this embodiment, the original coded waveform and the chopped coded waveform adopt the same coding method, and the specific methods include: SS1) using the decoding processing unit to sequentially calculate the time intervals of each adjacent pulse sequence in the coded waveform to form a time interval number set; SS2) Compare the first and last two adjacent time intervals in the time interval number set, and divide the continuous pulse array in the following way to obtain several continuous pulse arrays: If the previous time interval is equal to the next time interval, then the two pulse sequences corresponding to the previous time interval and the two pulse sequences corresponding to the next time interval are continuous pulse sequences and are in the same continuous pulse array; If the previous time interval is ≠ the next time interval, then the two pulse sequences corresponding to the previous time interval and the two pulse sequences corresponding to the next time interval are discontinuous pulse sequences and are in different continuous pulse arrays; SS3) Count the number of pulses in each continuous pulse array, such as Figure 2 As shown in the figure, each continuous pulse array is decoded according to the following rules to obtain several decoding information: ① If the number of pulses in a continuous pulse array is A, and the number of pulses A is 2, then the continuous pulse array is decoded as "1"; ② If the number of pulses in a continuous pulse array is B, and the number of pulses B is 5, the continuous pulse array is decoded as "0"; ③ If the number of pulses in a continuous pulse array is C, and the number of pulses C is 9, the continuous pulse array is decoded as the "encoding start position"; In this embodiment, the information such as the detonation time and action mode of the small-caliber time fuze calculated by the muzzle setting device is converted into binary information, and the "1" and "0" in the binary information are represented as different pulse signals in the jump coding signal through the coding rule corresponding to the above decoding rule, and finally transmitted to the information receiving coil of the small-caliber electronic time fuze in the form of a jump coding signal. The small-caliber electronic time fuze then sets the parameters (detonation time and action mode, etc.) of the small-caliber electronic time fuze according to the binary data decoded by the decoding rule.
[0039] SS4) Sorts the decoded information according to the order of the corresponding continuous pulse arrays in the coded waveform, and uses the sorting result as the decoded information of the transition coded signal.
[0040] Since small-caliber ammunition has a short flight time after launch, its configured small-caliber electronic time fuze often needs to be quickly set and prepared. This means that while the jump-coded signal is actually used to transmit information such as the action time and action mode of the small-caliber electronic time fuze, the small-caliber electronic time fuze is also decoding the received jump-coded waveform. This receiving and decoding method can obtain and process the setting information in the shortest time, ensuring that the fuze can be detonated at the right time. For example, in a small-caliber anti-aircraft gun with a high rate of fire, the shell needs to reach the vicinity of the target in a short time and detonate accurately. Only by receiving and decoding can this real-time requirement be met and the efficiency of intercepting aerial targets can be improved.
[0041] From the above, it can be seen that the present embodiment firstly increases the potential lethality of the ammunition by using the tail of the ammunition originally provided with a small-caliber electronic time fuze to add additional explosives; secondly, by adjusting the information receiving circuit of the small-caliber electronic time fuze and adding a chopped wave processing unit, the small-caliber electronic time fuze whose position has been changed can completely receive the detonation time and action mode transmitted by the jump coded signal and perform correct decoding, so that the ammunition with the additional explosives can be detonated and acted according to the set time and method, thereby achieving the purpose of stably improving the lethality of the ammunition.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification made to the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.
Claims
1. A method for improving the lethality of ammunition, characterized in that: The following steps are involved: 1) Move the fuze at the tail of the ammunition to the free space at the head of the ammunition, and add additional explosives in the free space at the tail of the ammunition; 2) Improve the information receiving circuit of the fuze, amplify the jump coding signal received by the information receiving coil L1 in the information receiving circuit, and make the amplified jump coding signal accurately recognized by the fuze.
2. The method for improving the lethality of ammunition according to claim 1, characterized in that: The improved information receiving circuit includes an induction receiving unit, a signal processing unit, and a decoding processing unit. The information receiving coil L1 is the signal input end of the induction receiving unit, the signal output end of the induction receiving unit is connected to the signal input end of the signal processing unit, and the signal output end of the signal processing unit is connected to the signal input end of the decoding processing unit.
3. The method for improving the lethality of ammunition according to claim 2, characterized in that: The induction receiving unit includes an information receiving coil L1, a capacitor C1, a capacitor C2, a resistor R1, and a resistor R2. One ends of the information receiving coil L1, the capacitor C2, and the resistor R2 are all connected in parallel to the signal output end of the induction receiving unit. The other ends of the information receiving coil L1, the capacitor C2, and the resistor R2 are all grounded through the resistor R1, and the resistor R1 is connected in parallel with the capacitor C1.
4. The method for improving the lethality of ammunition according to claim 3, characterized in that: The inductance of the information receiving coil L1 is 40 μH, the capacitance value of the capacitor C1 is 10 nF, the capacitance value of the capacitor C2 is 100 pF, the resistance value of the resistor R1 is 510 Ω, and the resistance value of the resistor R2 is 4.3 kΩ.
5. The method for improving the lethality of ammunition according to claim 2, characterized in that: The signal processing unit includes a capacitor C3, a capacitor C4, a resistor R3, a resistor R4, and a resistor R5. One end of the capacitor C3 is connected to the signal output end of the induction receiving unit, and the other end of the capacitor C3 is connected in parallel to the signal input end of the decoding processing unit through the resistor R3, the resistor R4, and one end of the resistor R5. The other end of the resistor R4 and one end of the capacitor C4 are both connected to a power supply, and the other end of the resistor R5 and the other end of the capacitor C4 are both grounded.
6. The method for improving the lethality of ammunition according to claim 2, characterized in that: A wave clipping processing unit is arranged between the signal processing unit and the decoding processing unit, which is used to determine the high level threshold of the transition coding signal and to clip and decode the original coding waveform of the transition coding signal during the ammunition firing process.
7. The method for improving the lethality of ammunition according to claim 6, characterized in that: The wave cutting processing unit includes a diode D1, a resistor R6, a resistor R7, and a resistor R8. The positive electrode of the diode D1 is connected to the signal output port of the signal processing unit, the negative electrode of the diode D1 and one end of the resistor R6 are connected in parallel to the signal input port of the decoding processing unit, and the other end of the resistor R6 is grounded through the resistor R8 and connected to the power supply through the resistor R7.
8. The method for improving the lethality of ammunition according to claim 6, characterized in that: The original coded waveform of the jump coded signal is cut and decoded during the ammunition firing process, including the following steps: S1) collecting the transition coding signal emitted by the transmitting coil, and using the waveform of the transition coding signal as the original coding waveform; S2) using a truncated wave processing unit to cut off the waveform whose level value is lower than the high level threshold in the original coded waveform to form a truncated wave coded waveform; S3) using a decoding processing unit to simultaneously decode the chopped coded waveform and the original coded waveform, and to fuse the decoding results of the chopped coded waveform and the original coded waveform to obtain a decoding result of the transition coded signal.
9. The method for decoding a transition coded waveform according to claim 8, characterized in that: In step S3), the decoding processing unit is used to simultaneously decode the chopped coded waveform and the original coded waveform, and the decoding results of the chopped coded waveform and the original coded waveform are merged to obtain the decoding result of the transition coded signal. The specific method includes: S3-1) setting a decoding result sequence for recording the decoding result of the chopped coded waveform and the decoding result of the original coded waveform; S3-2) Input the chopped coded waveform and the original coded waveform into the decoding processing unit respectively, and use the decoding processing unit to decode the chopped coded waveform and the original coded waveform at the same time, and record the decoding results using the decoding result sequence in the following manner: ① If the level value of the pulse sequence of the chopped wave coded waveform is greater than 0, the decoding result of the chopped wave coded waveform is recorded in the decoding sequence; ② If the level value of the pulse sequence of the chopped wave coded waveform = 0, the decoding result of the original coded waveform is recorded in the decoding sequence; S3-3) Using the decoding result sequence obtained in step S3-2) as the decoding result of the original coded waveform.
10. The method for decoding a transition coded waveform according to claim 8 or 9, characterized in that: The specific decoding method includes: SS1) using the decoding processing unit to sequentially calculate the time intervals of each adjacent pulse sequence in the coded waveform to form a time interval number set; SS2) Compare the first and last two adjacent time intervals in the time interval number set, and divide the continuous pulse array in the following way to obtain several continuous pulse arrays: If the previous time interval is equal to the next time interval, then the two pulse sequences corresponding to the previous time interval and the two pulse sequences corresponding to the next time interval are continuous pulse sequences and are in the same continuous pulse array; If the previous time interval is ≠ the next time interval, then the two pulse sequences corresponding to the previous time interval and the two pulse sequences corresponding to the next time interval are discontinuous pulse sequences and are in different continuous pulse arrays; SS3) Count the number of pulses in each continuous pulse array respectively, and decode each continuous pulse array according to the following rules to obtain several decoding information: ① If the number of pulses in a continuous pulse array is A, the continuous pulse array is decoded as "1"; ② If the number of pulses in a continuous pulse array is B, the continuous pulse array is decoded as "0"; ③ If the number of pulses in a continuous pulse array is C, the continuous pulse array is decoded as the "encoding start position"; SS4) Sorts the decoded information according to the order of the corresponding continuous pulse arrays in the coded waveform, and uses the sorting result as the decoded information of the transition coded signal.