Detection device and detection method for a timing generator of a guidance system

Abstract

The application introduces a kind of detection device and detection method of guidance system timing generator, the detection device includes first DC regulated power supply, second DC regulated power supply, control switching unit, oscilloscope and digital multimeter;Detection method includes: synchronous pulse signal test method, modulation pulse adjustment coefficient test method and inverse pulse signal test method.The application can simulate the actual power-on process of the product to be tested, give the detection condition, load the excitation signal through the reference modulation signal forming circuit inside the detection device, detect the synchronous pulse signal and the modulation pulse signal output by the product, realize the function detection of each module of the product, so as to judge the performance of the product;The process can quickly and accurately confirm the state of the product, cooperate with the automatic detection function of oscilloscope, and efficiently and accurately complete the signal timing detection.

Description

Technical Field

[0001] This invention relates to the field of guidance system testing technology, and in particular to a testing device and method for a guidance system timing generator. Background Technology

[0002] Timing generators are key components of guidance systems in aerospace products. They generate timing data to control the receiving and transmitting channels of the guidance system and perform online bit-in-time (BIT) testing during transmitter system operation. For signals with 3-5 channels, single-channel testing is possible. However, for multi-channel signals with 8 or more channels, the timing logic is complex, the coupling between signals is high, and the timing logic is strong. Parallel multi-channel simultaneous testing and comparative analysis are required. Currently, the performance testing of timing generators is performed by acquiring signal acquisition points of the guidance system using an oscilloscope.

[0003] The paper "Research on Repair Technology of a Certain Type of Radar Seeker Synchronizer" published in the January 2016 issue of "Aeronautical Maintenance and Engineering" disclosed a test system for a certain type of seeker synchronizer. The synchronizer test method uses the clock signal generated by the circuit board of the seeker's main control oscillator as the synchronizer excitation signal. The circuit board is built into the testing device to generate the synchronizer output signal. The disadvantages are that it requires the built-in equipment circuit board. The timing generator and the synchronizer have similar functions in the transmitter timing section. The difference is that it adds timing control functions for the receiving channel and the launching channel. The circuit structure and interface relationship are quite different. The pulse frequency of the excitation signal of the two are also quite different. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a detection device and method for a guidance system timing generator. The method is simple to operate, reliable, and can quickly perform performance testing on the seeker timing generator, thus solving the problem of fault location in the guidance system timing generator.

[0005] The technical solution adopted in this invention is: A detection device for a timing generator of a guidance system includes a first DC regulated power supply, a second DC regulated power supply, a control switching unit, an oscilloscope, and a digital multimeter; The first DC regulated power supply is connected to the control switching unit, and the control switching unit is connected to the timing generator; the second DC regulated power supply is connected to the timing generator; the oscilloscope is connected to the timing generator; and a digital multimeter measures the output voltage values ​​of the first DC regulated power supply and the second regulated power supply. The control switching unit includes an external panel and a built-in reference modulation signal forming circuit. The control switching unit simulates the master oscillator to generate a reference clock signal and a modulation pulse signal, providing excitation and enable signals for the timing generator.

[0006] Specifically, the external panel is equipped with a power switch, three enable signal switches, and several detection points; the detection points include a synchronization signal detection point, a modulation signal detection point, an enable signal detection point, an excitation signal detection point, and a high-voltage power supply modulation signal detection point.

[0007] More specifically, the synchronization signal detection points include the intermediate frequency receiver synchronization signal detection point, the self-test generator synchronization signal detection point, and the preprocessing synchronization signal detection point; The modulation pulse signal detection points include modulator modulation signal detection points, power optimization device modulation signal detection points, and preprocessed combined modulation signal detection points. The enable signal detection point includes three points. The signal is active at low level and is connected to the ground terminal of the control transfer unit. It serves as the enable signal for the timing generator and is loaded into the timing generator FPGA chip. The excitation signal detection points include a reference clock signal detection point and a modulation pulse signal detection point, which are loaded into the timing generator FPGA chip; The high-voltage power supply modulation signal detection point includes two points, which are used for the high-voltage power supply modulation signal of the B board of the timing generator.

[0008] Specifically, the reference modulation signal forming circuit includes a crystal oscillator, three quad 2 NAND gates, one hex inverter, and two binary synchronous adder counters. Under the action of DC power, the crystal oscillator first passes through the first quad 2 NAND gate, which outputs two stable clock signals: the first stable clock signal enters the hex inverter for logic processing and outputs a reference clock signal sent to the timing generator RF port. The second stable clock signal is processed by the second 42 NAND gate and then output to the clock pulse terminals of the two binary synchronous adder counters. The first binary synchronous adder counter divides the signal to generate the first divided signal. The first divided signal is then processed by the second 42 NAND gate and sent to the third 42 NAND gate for further processing. After processing, it enters the second binary synchronous adder counter for further division and generates the second divided signal. The second divided signal is then processed by the third 42 NAND gate to output the modulation pulse signal, which enters the internal circuit from the external interface of the timing generator.

[0009] A method for detecting a timing generator in a guidance system, specifically including: Synchronization pulse signal test method: Connect the first DC regulated power supply to the control transfer unit, connect the control transfer unit to the timing generator A board, connect the oscilloscope to the control transfer unit, turn on the enable signal switch, and measure the pulse period and pulse width of the intermediate frequency receiver synchronization signal, the preprocessing synchronization signal and the self-test generator synchronization signal respectively, and observe the consistency of the pulse period and pulse width of each synchronization signal and the modulation pulse signal. Modulation pulse adjustment coefficient test method: Connect the first DC regulated power supply to the control adapter unit, connect the control adapter unit to the timing generator A board, connect the oscilloscope to the control adapter unit, turn on the enable signal switch, and measure the pulse period and pulse width of the modulator modulation signal, the power optimization device modulation signal, and the preprocessed combined modulation signal respectively. Calculate the pulse period adjustment coefficient and pulse width adjustment coefficient of the modulator modulation signal, the power optimization device modulation signal, and the preprocessed combined modulation signal according to the adjustment factor calculation formula. Inverted pulse signal test method: Connect the second DC regulated power supply to the timing generator B board, and connect the oscilloscope to the detection point of the control transfer unit. Measure the pulse period, positive and negative pulse widths, and voltage polarities of the high-voltage power supply modulation signal I and high-voltage power supply modulation signal II output by the timing generator. Examine the pulse symmetry characteristics of high-voltage power supply modulation signal I and high-voltage power supply modulation signal II according to the positive and negative pulse symmetry formula; examine the positive and negative pulse voltage polarities of high-voltage power supply modulation signal I and high-voltage power supply modulation signal II according to the positive and negative pulse voltage bipolarity formula.

[0010] Specifically, in the modulation pulse adjustment coefficient test method, the adjustment factor calculation formula includes the pulse period adjustment coefficient calculation formula and the pulse width adjustment coefficient calculation formula; The formula for calculating the pulse period adjustment coefficient is: C T1 (C) T2 Or C T3 =T1(T2 or T3) / T MP ; In the formula: C T1 : Modulator modulation signal pulse period adjustment coefficient; C T2 : Adjustment coefficient of modulation signal pulse period for power optimization device; C T2 : Adjustment coefficient for the pulse period of the preprocessed combined modulation signal; T1: Modulator modulation signal pulse period, unit: μs; T2: Pulse period of the modulation signal from the power optimization device, in μs; T3: Preprocessed combined modulation signal pulse period, unit: μs; T MP : Pulse period of the modulated pulse signal, unit: μs; The formula for calculating the pulse width adjustment factor is: C W1 (C) W2 Or C W3 =W1 (W2 or W3) / W MP In the formula: C W1 : Modulator pulse width adjustment coefficient; C W2 : Pulse width adjustment coefficient of the modulation signal in the power optimization device; C W2 : Pulse width adjustment coefficient for preprocessed combined modulation signal; W1: Modulator pulse width of the modulated signal, unit: μs; W2: Pulse width of the modulation signal from the power optimization device, in μs; W3: Pulse width of preprocessed combined modulation signal, unit: μs; W MP : Pulse width of the modulated pulse signal, unit: μs.

[0011] Specifically, in the aforementioned inverted pulse signal testing method, the symmetrical formula for positive and negative pulses is as follows: W Ⅰ / T Ⅰ + W Ⅱ / T Ⅱ =1; In the formula: W Ⅰ : Positive pulse width of high-voltage power supply modulation signal I, unit: μs; T Ⅰ : The pulse period of high-voltage power supply modulation signal I, in μs; W Ⅱ : The width of the negative pulse of the high-voltage power supply modulation signal II, in μs; T Ⅱ : The pulse period of the high-voltage power supply modulation signal II, in μs; If the duty cycle of the high-voltage power supply modulation signal I is W Ⅰ / T Ⅰ Duty cycle W of high voltage power supply modulation signal II Ⅱ / T Ⅱ If the sum of the values ​​is 1, then the output signal of the timing generator is symmetrical; otherwise, it is asymmetrical. The formula for the bipolarity of positive and negative pulse voltages is: V H（Ⅰ） +∣V H（Ⅱ） |= V L（Ⅰ） +∣V L（Ⅱ） | V H（Ⅰ） High-voltage power supply modulation signal I: High level, unit: V; V H（Ⅱ） High-voltage power supply modulation signal II, unit: V; V L（Ⅰ） : Low level of high voltage power supply modulation signal I, unit: V; V L（Ⅱ） : Low level of high voltage power supply modulation signal II, unit: V.

[0012] Due to the adoption of the technical solution described above, the present invention has the following advantages: The timing generator detection device and method of this invention can simulate the actual power-on process of the product under test, provide detection conditions, load the excitation signal through the reference modulation signal forming circuit inside the detection device, and detect the synchronous pulse signal and modulation pulse signal output by the product to realize the functional detection of each module of the product, thereby judging the product performance. This process can quickly and accurately confirm the product status. With the automatic detection function of the oscilloscope, signal timing detection can be completed efficiently and with high precision. At the same time, a timing generator excitation signal forming system is established, and the reference modulation signal forming circuit is independently designed to simulate the reference clock signal and modulation pulse signal output by the main control oscillator. This avoids the cumbersome load testing of the entire timing generator's input and output signals, thereby realizing the protection of the main control oscillator and secondary power supply of the guidance system. For fault signals, single-channel detection of the control circuit can be performed to isolate the fault in a timely manner. The fault can be located and eliminated step by step through time-division and channel-division. It can also verify the power-on of some circuit modules, providing a simple and effective detection and verification platform for product repair and testing. This invention is safe, convenient and fast to operate, ensuring the safety and reliability of the equipment and meeting the usage requirements. Attached Figure Description

[0013] Figure 1 This is a structural block diagram of the detection device of the timing generator of the guidance system of the present invention.

[0014] Figure 2 This is a schematic diagram of the interface layout of the external panel of the control transfer unit of the present invention.

[0015] Figure 3 This is a circuit diagram of the reference modulation signal forming circuit of the present invention. Detailed Implementation

[0016] The present invention will be further explained and described below with reference to the accompanying drawings and embodiments. However, this should not be construed as limiting the scope of protection of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0017] Combined with appendix Figure 1-3 The detection device for a timing generator of a guidance system shown includes a first DC regulated power supply, a second DC regulated power supply, a control adapter unit, an oscilloscope, and a digital multimeter.

[0018] The first DC regulated power supply is connected to the control adapter unit, which in turn is connected to the timing generator. The first DC regulated power supply provides +5V operating power to the timing generator's A board and the reference modulation signal forming circuit inside the control adapter unit. The second DC regulated power supply is connected to the timing generator, providing +5V operating power to the timing generator's B board. An oscilloscope is connected to the timing generator to measure the output signal form, signal frequency, and voltage polarity of the timing generator. A digital multimeter measures the output voltage values ​​of the first DC regulated power supply and the second regulated power supply. The excitation signal, output signal, and operating voltage of the timing generator's A board are all connected to the oscilloscope and digital multimeter through the control adapter unit. The timing generator's B board is directly connected to the second DC regulated power supply and the control adapter unit.

[0019] The control switching unit includes an external panel and a built-in reference modulation signal forming circuit. The control switching unit simulates the master oscillator to generate a reference clock signal and a modulation pulse signal, providing excitation and enable signals for the timing generator.

[0020] like Figure 2 As shown, the external panel is equipped with a +5V power switch, three enable signal switches, a synchronization signal detection point, a modulation signal detection point, an enable signal detection point, an excitation signal detection point, and a high-voltage power supply modulation signal detection point. The synchronization signal detection points are XS4_9 for the intermediate frequency receiver, XS3_5 for the self-test generator, and XS3_9 for the preprocessing synchronization signal. The modulation pulse signal detection points include XS3_1 for the modulator, XS3_2 for the power optimization device, and XS3_9 for the preprocessing assembly. The modulation signal detection point is XS5_8; the enable signal detection points include three: TG_en1, TG_en2, and TG_en3. This signal is active low and connected to the ground terminal of the control transfer unit. It serves as the enable signal for the timing generator and is loaded into the timing generator FPGA chip; the excitation signal detection points include the reference clock signal detection point and the modulation pulse signal detection point, which are loaded into the timing generator FPGA chip; the high-voltage power supply modulation signal detection points include the high-voltage power supply modulation signal I detection point HPVSⅠ and the high-voltage power supply modulation signal II detection point HPVSⅡ.

[0021] The reference modulation signal forming circuit includes a crystal oscillator U7, a 74AC00 type first quad 2 NAND gate U1, a 74AC00 type second quad 2 NAND gate U3, a 74AC00 type third quad 2 NAND gate U5, a 74AC04 type hex inverter U2, a 74AC163 type first binary synchronous adder counter U4, and a 74AC163 type second binary synchronous adder counter U6. Under the action of "+5V" DC power, the crystal oscillator generates a high-stability clock signal of a certain frequency, which is used as a reference and enters pins 9 and 10 of the first quad 2 NAND gate U1. It is output from pin 8 and then enters pins 12 and 13 of the first quad 2 NAND gate U1. It outputs two stable clock signals from pin 11.

[0022] The first stable clock signal first enters pins 1 and 2 of the first quad 2 NAND gate U1, outputs from pin 3, then to pins 4 and 5, outputs from pin 6, and enters pin 1 of the hex inverter U2. Logic processing is performed inside the hex inverter, specifically: output from pin 2 to pin 13, output from pin 12 to pin 3, output from pin 4 to pin 11, output from pin 10 to pin 5, output from pin 6 to pin 9, and output from pin 8 to the reference clock signal sent to the timing generator RF port.

[0023] The second stable clock signal enters pins 9 and 10 of the second 4x2 NAND gate U3. After processing, it is output from pin 8 and split into two paths, which enter pin 2 of the clock pulse terminals of the two binary synchronous adders U4 and U6, respectively. The first binary synchronous adder U4 divides the signal and outputs the first divided signal from pins 11 and 13. The first divided signal enters the second 4x2 NAND gate U3 from pins 12 and 13, and is output from pin 6. It then enters pin 9 of the third 4x2 NAND gate U5 for processing, becoming a condition for generating the read signal of the second binary synchronous adder U6. After processing, it is output from pin 8. Pin 1 of the second binary synchronous adder counter U6 is divided again to generate a second divided signal. The second divided signal is output from pin 13 and split into two paths. One path returns to pin 10 of the third four-inverter gate U5, becoming another condition for generating the read signal of the second binary synchronous adder counter U6. After being processed by the third four-inverter gate U5, these two conditions cycle to control the read signal of the second binary synchronous adder counter U6. The other path of the second divided signal goes to pins 1 and 2 of the third four-inverter gate U5, outputs from pin 3 to pins 4 and 5, and then outputs a modulation pulse signal from pin 6, which enters the internal circuit from the external interface of the timing generator.

[0024] A method for detecting a timing generator in a guidance system, specifically including: Synchronization pulse signal test method: Connect the first DC regulated power supply to the control adapter unit, turn on the three enable signal switches, connect the plug of the control adapter unit to the connector of the timing generator A board, connect the oscilloscope to the synchronization signal detection points XS4_9, XS3_5, and XS3_9 connected to the control adapter unit, and measure the pulse period and pulse width of the intermediate frequency receiver synchronization signal, the preprocessed synchronization signal, and the self-test generator synchronization signal, respectively, and observe the consistency of the pulse period and pulse width of each synchronization signal and the modulation pulse signal.

[0025] Modulation pulse adjustment coefficient test method: Connect the first DC regulated power supply to the control transfer unit, turn on the three enable signal switches, connect the control transfer unit to the timing generator A board, and connect the oscilloscope to the modulation pulse signal detection points XS3_1, XS3_2, and XS5_8 of the control transfer unit. Measure the pulse period and pulse width of the modulator modulation signal, the power optimization device modulation signal, and the preprocessed combined modulation signal, respectively. Calculate the pulse period adjustment coefficient and pulse width adjustment coefficient of the modulator modulation signal, the power optimization device modulation signal, and the preprocessed combined modulation signal according to the adjustment factor calculation formula. The formula for calculating the pulse period adjustment coefficient is: C T1 (C) T2 Or C T3 =T1(T2 or T3) / T MP ; In the formula: C T1 : Modulator modulation signal pulse period adjustment coefficient; C T2 : Adjustment coefficient of modulation signal pulse period for power optimization device; C T2 : Adjustment coefficient for the pulse period of the preprocessed combined modulation signal; T1: Modulator modulation signal pulse period, unit: μs; T2: Pulse period of the modulation signal from the power optimization device, in μs; T3: Preprocessed combined modulation signal pulse period, unit: μs; T MP : Pulse period of the modulated pulse signal, unit: μs; The formula for calculating the pulse width adjustment factor is: C W1 (C) W2 Or C W3 =W1 (W2 or W3) / W MP In the formula: C W1 : Modulator pulse width adjustment coefficient; C W2 : Pulse width adjustment coefficient of the modulation signal in the power optimization device; C W2 : Pulse width adjustment coefficient for preprocessed combined modulation signal; W1: Modulator pulse width of the modulated signal, unit: μs; W2: Pulse width of the modulation signal from the power optimization device, in μs; W3: Pulse width of preprocessed combined modulation signal, unit: μs; W MP : Pulse width of the modulated pulse signal, unit: μs.

[0026] Inverted pulse signal test method: Connect the second DC regulated power supply to the timing generator B board, and connect the oscilloscope to the detection points "HPVSⅠ" and "HPVSⅡ" of the control transfer unit. Measure the pulse period, positive and negative pulse width, and voltage polarity of the high-voltage power supply modulation signal Ⅰ and high-voltage power supply modulation signal Ⅱ output by the timing generator, respectively. Examine the pulse symmetry characteristics of high-voltage power supply modulation signal Ⅰ and high-voltage power supply modulation signal Ⅱ according to the positive and negative pulse symmetry formula; examine the positive and negative pulse voltage polarity of high-voltage power supply modulation signal Ⅰ and high-voltage power supply modulation signal Ⅱ according to the positive and negative pulse voltage bipolarity formula.

[0027] The formula for symmetric positive and negative pulses is: W Ⅰ / T Ⅰ + W Ⅱ / T Ⅱ =1; In the formula: W Ⅰ : Positive pulse width of high-voltage power supply modulation signal I, unit: μs; T Ⅰ : The pulse period of high-voltage power supply modulation signal I, in μs; W Ⅱ : The width of the negative pulse of the high-voltage power supply modulation signal II, in μs; T Ⅱ : The pulse period of the high-voltage power supply modulation signal II, in μs; If the duty cycle of the high-voltage power supply modulation signal I is W Ⅰ / T Ⅰ Duty cycle W of high voltage power supply modulation signal II Ⅱ / T Ⅱ If the sum of the values ​​is 1, then the output signal of the timing generator is symmetrical; otherwise, it is asymmetrical.

[0028] The formula for the bipolarity of positive and negative pulse voltages is: V H（Ⅰ） +∣V H（Ⅱ） |= VL（Ⅰ） +∣V L（Ⅱ） | V H（Ⅰ） High-voltage power supply modulation signal I: High level, unit: V; V H（Ⅱ） High-voltage power supply modulation signal II, unit: V; V L（Ⅰ） : Low level of high voltage power supply modulation signal I, unit: V; V L（Ⅱ） : Low level of high voltage power supply modulation signal II, unit: V.

[0029] The parts of this invention not described in detail are prior art.

[0030] The embodiments selected herein for the purpose of disclosing the inventive objectives are currently considered suitable; however, it should be understood that the invention is intended to include all variations and modifications of the embodiments that fall within the scope of this concept and invention.

Claims

1. A detection device for a timing generator in a guidance system, characterized in that: It includes a first DC regulated power supply, a second DC regulated power supply, a control adapter unit, an oscilloscope, and a digital multimeter; The first DC regulated power supply is connected to the control switching unit, and the control switching unit is connected to the timing generator; the second DC regulated power supply is connected to the timing generator; the oscilloscope is connected to the timing generator. A digital multimeter is used to measure the output voltage values ​​of the first DC regulated power supply and the second regulated power supply. The control switching unit includes an external panel and a built-in reference modulation signal forming circuit. The control switching unit simulates the master oscillator to generate a reference clock signal and a modulation pulse signal, providing excitation and enable signals for the timing generator.

2. The detection device for the timing generator of the guidance system according to claim 1, characterized in that: The external panel is equipped with a power switch, three enable signal switches, and several detection points; the detection points include a synchronization signal detection point, a modulation signal detection point, an enable signal detection point, an excitation signal detection point, and a high-voltage power supply modulation signal detection point.

3. The detection device for the timing generator of the guidance system according to claim 2, characterized in that: The synchronization signal detection points include the intermediate frequency receiver synchronization signal, the self-test generator synchronization signal, and the preprocessed synchronization signal; The modulation pulse signal detection point includes the modulator modulation signal, the power optimization device modulation signal, and the preprocessed combined modulation signal; The enable signal detection point includes three points. The signal is active at low level and is connected to the ground terminal of the control transfer unit. It serves as the enable signal for the timing generator and is loaded into the timing generator FPGA chip. The excitation signal detection points include reference clock signal and modulation pulse signal detection points, which are loaded into the timing generator FPGA chip; The high-voltage power supply modulation signal detection point includes two points, which are used for the high-voltage power supply modulation signal of the B board of the timing generator.

4. The detection device for the timing generator of the guidance system according to claim 1, characterized in that: The reference modulation signal forming circuit includes a crystal oscillator, three quad 2 NAND gates, one hex inverter, and two binary synchronous adder counters; Under the action of DC power, the crystal oscillator first passes through the first 42 NAND gate, which outputs two stable clock signals: the first stable clock signal enters the hex inverter for logic processing and outputs the reference clock signal to the timing generator RF port. The second stable clock signal is processed by the second 42 NAND gate and then output to the clock pulse terminals of the two binary synchronous adder counters. The first binary synchronous adder counter divides the signal to generate the first divided signal. The first divided signal then passes through the second 4x2 NAND gate and is sent to the third 4x2 NAND gate for processing. After processing, it enters the second binary synchronous adder counter for further frequency division and generates the second divided signal. The second frequency division signal is processed by the third and fourth NAND gates to output a modulated pulse signal, which enters the internal circuit from the external interface of the timing generator.

5. A detection method using the detection device for the guidance system timing generator according to any one of claims 1-4, characterized in that, Specifically, it includes: Synchronization pulse signal test method: Connect the first DC regulated power supply to the control transfer unit, connect the control transfer unit to the timing generator A board, connect the oscilloscope to the control transfer unit, turn on the enable signal switch, and measure the pulse period and pulse width of the intermediate frequency receiver synchronization signal, the preprocessing synchronization signal and the self-test generator synchronization signal respectively, and observe the consistency of the pulse period and pulse width of each synchronization signal and the modulation pulse signal. Modulation pulse adjustment coefficient test method: Connect the first DC regulated power supply to the control adapter unit, connect the control adapter unit to the timing generator A board, connect the oscilloscope to the control adapter unit, turn on the enable signal switch, and measure the pulse period and pulse width of the modulator modulation signal, the power optimization device modulation signal, and the preprocessed combined modulation signal respectively. Calculate the pulse period adjustment coefficient and pulse width adjustment coefficient of the modulator modulation signal, the power optimization device modulation signal, and the preprocessed combined modulation signal according to the adjustment factor calculation formula. Inverted pulse signal test method: Connect the second DC regulated power supply to the timing generator B board, and connect the oscilloscope to the detection point of the control transfer unit. Measure the pulse period, positive and negative pulse widths, and voltage polarities of the high-voltage power supply modulation signal I and high-voltage power supply modulation signal II output by the timing generator. Examine the pulse symmetry characteristics of high-voltage power supply modulation signal I and high-voltage power supply modulation signal II according to the positive and negative pulse symmetry formula; examine the positive and negative pulse voltage polarities of high-voltage power supply modulation signal I and high-voltage power supply modulation signal II according to the positive and negative pulse voltage bipolarity formula.

6. The detection method for the timing generator of the guidance system according to claim 5, characterized in that: In the modulation pulse adjustment coefficient test method, the adjustment factor calculation formula includes the pulse period adjustment coefficient calculation formula and the pulse width adjustment coefficient calculation formula; The formula for calculating the pulse period adjustment coefficient is: C T1 (C) T2 Or C T3 =T1(T2 or T3) / T MP ; In the formula: C T1 : Modulator modulation signal pulse period adjustment coefficient; C T2 : Adjustment coefficient of modulation signal pulse period for power optimization device; C T2 : Adjustment coefficient for the pulse period of the preprocessed combined modulation signal; T1: Modulator modulation signal pulse period, unit: μs; T2: Pulse period of the modulation signal from the power optimization device, in μs; T3: Preprocessed combined modulation signal pulse period, unit: μs; T MP : Pulse period of the modulated pulse signal, unit: μs; The formula for calculating the pulse width adjustment factor is: C W1 (C) W2 Or C W3 =W1 (W2 or W3) / W MP ; In the formula: C W1 : Modulator pulse width adjustment coefficient; C W2 : Pulse width adjustment coefficient of the modulation signal in the power optimization device; C W2 : Pulse width adjustment coefficient for preprocessed combined modulation signal; W1: Modulator pulse width of the modulated signal, unit: μs; W2: Pulse width of the modulation signal from the power optimization device, in μs; W3: Pulse width of preprocessed combined modulation signal, unit: μs; W MP : Pulse width of the modulated pulse signal, unit: μs.

7. The detection method for the timing generator of the guidance system according to claim 5, characterized in that: In the aforementioned method for testing inverted pulse signals, the formula for symmetrical positive and negative pulses is as follows: W Ⅰ / T Ⅰ + W Ⅱ / T Ⅱ =1; In the formula: W Ⅰ : Positive pulse width of high-voltage power supply modulation signal I, unit: μs; T Ⅰ : The pulse period of high-voltage power supply modulation signal I, in μs; W Ⅱ : The width of the negative pulse of the high-voltage power supply modulation signal II, in μs; T Ⅱ : The pulse period of the high-voltage power supply modulation signal II, in μs; If the duty cycle of the high-voltage power supply modulation signal I is W Ⅰ / T Ⅰ Duty cycle W of high voltage power supply modulation signal II Ⅱ / T Ⅱ If the sum of the values ​​is 1, then the output signal of the timing generator is symmetrical; otherwise, it is asymmetrical. The formula for the bipolarity of positive and negative pulse voltages is: V H（Ⅰ） +∣V H（Ⅱ） ∣= V L（Ⅰ） +∣V L（Ⅱ） ∣; V H（Ⅰ） High-voltage power supply modulation signal I: High level, unit: V; V H（Ⅱ） High-voltage power supply modulation signal II, unit: V; V L（Ⅰ） : Low level of high voltage power supply modulation signal I, unit: V; V L（Ⅱ） : Low level of high voltage power supply modulation signal II, unit: V.

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