CN108401580B - A kind of nuclear explosion electromagnetic pulse signal source simulator - Google Patents
A kind of nuclear explosion electromagnetic pulse signal source simulator Download PDFInfo
- Publication number
- CN108401580B CN108401580B CN201010047666.4A CN201010047666A CN108401580B CN 108401580 B CN108401580 B CN 108401580B CN 201010047666 A CN201010047666 A CN 201010047666A CN 108401580 B CN108401580 B CN 108401580B
- Authority
- CN
- China
- Prior art keywords
- signal
- dds
- dsp
- electromagnetic pulse
- nuclear explosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Tests Of Electronic Circuits (AREA)
Abstract
The present invention relates to a kind of nuclear explosion electromagnetic pulse signal source simulators.The signal generating unit of the present invention uses digital circuit, that is, DSP+DDS is used to constitute the main body circuit of signal source simulator, realizes that DDS is set and controlled in DSP by SPI interface.Crystal oscillator inputs for DSP clocks, the system clock output signal of DSP is inputted as DDS clocks, PLL inside DDS is arranged by SPI communication in DSP, control DDS system clock frequencies, and then it can realize that 300MHz~30MHz frequency conversions export, DDS maximums can get the output signal of 400MHz, and the frequency conversion period is adjustable, and the minimum frequency conversion period is 4ns；Amplitude is adjustable, and the electromagnetic pulse signal in ionosphere is longitudinally transferred through suitable for simulated atmosphere layer nuclear explosion electromagnetic pulse, and the simulation of nuclear blast electromagnetic pulse signal, is of great significance to China's national defense construction in being tested especially suitable for satellite sounding signal of nuclear explosion.
Description
Technical field
The present invention relates to a kind of nuclear explosion electromagnetic pulse signal source simulators, more particularly to a kind of digital core
Quick-fried electromagnetic pulse signal source simulator, for electromagnetism in satellite sounding nuclear explosion electromagnetic pulse signal simulation test
The simulation of pulse signal.
Background technology
Nuclear explosion electromagnetic pulse simulation device generally use analog circuit is realized at present, and is for endoatmosphere
The big intensity of nuclear explosion electromagnetic pulse, the transient electromagnetic pulse waveform of fast rise time are simulated, such as the U.S. 1967
The TRESTLE simulators of ALECS simulators, development in 1980 that year develops, ATLAS I simulators,
The OWL II simulators developed in 1988 and EMPRESS electric dipole simulators etc.；What Russia developed
SEMP-M5M, HVCPG-12/30, TORNADO and Moski simulator etc.；Northwest China nuclear technology in 2006
The 50kV of the developments such as research institute's Sun Bei clouds, the forward positions 1ns high-voltage pulsed source；Xibei Nuclear Techn Inst in 2007
The 300kV of the developments such as Tang Junping, 3ns pulse voltage source；Ordnance Engineering College's electrostatic in 2007 and electromagnetic protection
The 800kV thunder electromagnetic pulse field analog devices of the developments such as research institute Fan Lisi；Beijing Aviation engineering technology in 2007
The forward position of the developments such as research center Hou Min victory is less than the electromagnetic impulse source of 10ns；Southeast China University's electromagnetism is simultaneous within 2006
The crest voltage for holding the developments such as the research department peaks Chen Wei is higher than 26kV, and the rise time is less than 2.8ns nanosecond pulse sources.
These electromagnetic pulse analog machines can be used for simulating big intensity, fast rise time nuclear blast transient electromagnetic pulse wave
Shape, main body are made of the load of pulse high-voltage generator, illuminator and terminal.High pressure generator is by Marx
Generator, main switch and peaking capacitor are constituted, and so that the high-voltage pulse forward position of generation is become using peaking capacitor
Suddenly.
Analog nuclear explosion electromagnetic pulse simulator is complicated, of high cost, and debugging cycle is long, and existing mould
Quasi- device cannot simulate the characteristic that nuclear explosion electromagnetic pulse signal is longitudinally transferred through behind ionosphere.The country there is no so far
Cross the nuclear explosion electromagnetic pulse signal source simulator in ionosphere.
Invention content
The object of the present invention is to provide a kind of nuclear explosion electromagnetic pulse signal source simulator based on digital circuit,
It is of simple structure and low cost, the nuclear explosion electromagnetic pulse signal behind ionosphere can be simulated, signal is in frequency
Dispersion characteristics, frequency range is from 300MHz~30MHz.
In order to solve the above-mentioned technical problem, the present invention is using such a nuclear explosion electromagnetic pulse signal source simulation dress
Set, be made of power supply, signal generating unit, signal adjustment unit, power supply be responsible for signal generating unit and
Signal condition unit is powered, the signal that signal generating unit generates output signal after signal condition unit adjusts,
Signal generating unit is digital circuit, is made of crystal oscillator, DSP, the first transformer and DDS；Crystal oscillator is DSP
Clock reference signal is provided；DSP carries out the setting of I/O patterns and frequency signal in SPI communication, DDS
The input and setting of parameter；The system clock output level of DSP is Transistor-Transistor Logic level, by the system clock of DSP
Output signal becomes differential clock signal to DDS as time-base signal by the first transformer；Pass through DSP
SPI interface setting DDS built in PLL circuit, and then the internal clocking of DDS is set, built in DDS
There are RAM, DSP to enter output frequency point data to RAM write by SPI interface, while to built in DDS
Timer programs, and makes the frequency data in RAM by the ionosphere nuclear explosion electromagnetic pulse signal frequency dispersion time excessively
Sequential output controls the frequency and output time of DDS output signals；Signal condition unit is by resistance and second
Transformer forms；Resistance is sealed in the difference output end of DDS, believes difference current after accessing the second transformer
Number become single-ended voltage signal.
The present invention constitutes the main body circuit of signal source simulator using DSP+DDS, is realized by SPI interface
DDS is set and controlled in DSP, and using the DDS chips for carrying RAM, can reduce cost and letter
High-frequency output signal is obtained on the basis of change system, it is in frequency dispersion that this signal, which can simulate behind ionosphere,
The nuclear explosion electromagnetic pulse signal of characteristic, frequency range are 300MHz~30MHz, and DDS can get maximum
The output signal of 400MHz, the burst length, the frequency conversion period was adjustable within the scope of ms, and the minimum frequency conversion period is
4ns.The simulation source device is simple in structure, reliability is high, versatile.
Description of the drawings
Invention is further described in detail for described embodiment below in conjunction with the accompanying drawings.
Fig. 1 is theory of constitution block diagram of the present invention.
Fig. 2 is the electrical composition frame chart of signal generating unit of the present invention.
1 it is power supply, 2 be signal generating unit, 3 be signal adjustment unit, 4 be crystal oscillator, 5 is DSP, 6
Be DDS for the first transformer, 7,8 be resistance, 9 be the second transformer, S1 is clock reference signal, S2
It is differential clock signal, the S4 SPI that the first transformer exports for dsp system clock output signal, S3
Interface, S5 are DDS output signals, S6 is differential current signal, S7 is single-ended voltage signal.
Specific implementation mode
Fig. 1 is theory of constitution block diagram of the present invention, by power supply 1, signal generating unit 2 and signal condition unit 3
Composition, power supply 1 are responsible for powering to signal generating unit 2 and signal condition unit 3, have 5V, 3.3V and
Tri- kinds of 1.8V, the signal that signal generating unit 2 generates export after the adjustment of signal condition unit 3 to mould
Frequency of the quasi- atmosphere nuclear explosion electromagnetic pulse radial transport behind ionosphere is believed in the electromagnetic pulse of dispersion characteristics
Number S7.
Fig. 2 be signal generating unit 2 theory of constitution block diagram, by crystal oscillator 4, DSP5, the first transformer 6,
DDS7 is formed, and the function and composition of each section are described below respectively：
Crystal oscillator 4 is 10MHz, is responsible for DSP5 and provides clock reference signal S1；DSP5 major functions are
Carry out SPI communication, the setting of DDS7 correlation I/O patterns and the input and setting of frequency signal relevant parameter；
The 40MHz system clock output levels of DSP5 are Transistor-Transistor Logic level, by the 3.3V Transistor-Transistor Logic level systems of DSP5
Clock output signal S2 by the first transformer 6 become 1.8V differential clock signals S2 to DDS7 as when
Base signal；It is 25 frequencys multiplication that the PLL circuit built in DDS7, which is arranged, by the SPI interface of DSP5, makes DDS7
Internal clocking become 1GHz, DDS7 is built-in with 1024word × 32-bit RAM, and DSP5 passes through SPI
Interface S4 enters output frequency point data to RAM write, while being programmed to 16 bit timers built in DDS7,
Make nuclear explosion electromagnetic of the frequency data in RAM by atmosphere nuclear explosion electromagnetic pulse radial transport by ionosphere
Pulse signal frequency dispersion time sequencing exports, when controlling frequency and the output of DDS output signals S5 respectively
Between.
In Fig. 3, the Ω of 30 Ω~50 resistance 8 is sealed at the ends difference current output signal S6 of DDS7, is accessed
Become single-ended voltage signal S7 after second transformer 9；It is radially passed to the pulse of simulated atmosphere layer nuclear explosion electromagnetic
The defeated frequency behind ionosphere is in the electromagnetic pulse signal of dispersion characteristics.
As the preferred embodiment of the present invention, DSP5 uses TMS320LF2407 chips, DDS7 to use
AD9910 chips；First transformer 6 uses ETC1-1-13 models, the second transformer 9 to use ADT1-1WT
Model, the resistance value that resistance 8 is sealed in the difference output end of DDS7 are 30 Ω.
The test result for the principle prototype designed by using technical solution of the present invention proves, output signal
Maximum frequency is 4ns up to 400MHz, controllable minimum time period, and amplitude is adjustable, waveform rule,
And reliability is high, debugging is convenient.
DSP5 chips in the present invention can also be used including TMS320LF2812, TMS320C6416,
TI companies Series of MCU including TMS320C6455 or TMS320C5501 chips.
The present invention is not limited to the above-described embodiments, and dsp chip can also use CPLD cores in signal generating unit
Piece replaces, and constitutes main body circuit by CPLD+DDS to realize the nuclear explosion electromagnetic pulse signal source mould of above-mentioned function
Quasi- device.
Claims (5)
1. a kind of nuclear explosion electromagnetic pulse signal source simulator, by power supply (1), signal generating unit (2),
Signal adjustment unit (3) forms, and power supply (1) is responsible for signal generating unit (2) and signal condition unit
(3) it powers, the signal (S5) that signal generating unit (2) generates is after signal condition unit (3) adjustment
Output signal (S7), it is characterised in that signal generating unit (2) is digital circuit, by crystal oscillator (4), DSP
(5), the first transformer (6) and DDS (7) compositions；Crystal oscillator (4) is that DSP (5) provides clock base
Calibration signal (S1)；DSP (5) carries out the setting of I/O patterns and frequency in SPI communication, DDS (7)
The input and setting of signal parameter；The system clock output signal (S2) of DSP (5) passes through the first transformer
(6) become differential clock signal (S3) and be used as time-base signal to DDS (7)；Pass through DSP's (5)
The PLL circuit built in DDS (7) is arranged in SPI interface (S4), and then when the inside of setting DDS (7)
Clock, DDS (7) are built-in with RAM, and DSP (5) enters output by SPI interface (S4) to RAM write
Frequency point data, while the timer built in DDS (7) is programmed, make the frequency data in RAM by mistake
Ionosphere nuclear explosion electromagnetic pulse signal frequency dispersion time sequencing output, controls DDS (7) output signal (S5)
Frequency and output time；Signal condition unit (3) is made of resistance (8) and the second transformer (9)；
Resistance (8) is sealed in the difference output end of DDS (7), by difference current after the second transformer of access (9)
Signal (S6) becomes single-ended voltage signal (S7).
2. a kind of nuclear explosion electromagnetic pulse signal source simulator as described in claim 1, it is characterised in that institute
The DSP (5) that states using include TMS320LF2407, TMS320LF2812, TMS320C6416,
TMS320 Series of MCU including TMS320C6455 TMS320C5501 chips.
3. a kind of nuclear explosion electromagnetic pulse signal source simulator as described in claim 1, it is characterised in that institute
The DDS (7) stated uses AD9910 chips.
4. a kind of nuclear explosion electromagnetic pulse signal source simulator as described in claim 1, it is characterised in that institute
The first transformer (6) the model ETC1-1-13 stated, the second transformer (9) model ADT1-1WT.
5. a kind of nuclear explosion electromagnetic pulse signal source simulator as described in claim 1, it is characterised in that institute
The resistance value for the resistance (8) stated is 30 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010047666.4A CN108401580B (en) | 2010-03-10 | 2010-03-10 | A kind of nuclear explosion electromagnetic pulse signal source simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010047666.4A CN108401580B (en) | 2010-03-10 | 2010-03-10 | A kind of nuclear explosion electromagnetic pulse signal source simulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108401580B true CN108401580B (en) | 2014-05-07 |
Family
ID=63078647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010047666.4A Active CN108401580B (en) | 2010-03-10 | 2010-03-10 | A kind of nuclear explosion electromagnetic pulse signal source simulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108401580B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222210A (en) * | 2017-06-07 | 2017-09-29 | 中国电子科技集团公司第二十四研究所 | It is a kind of that the DDS systems of numeric field clock phase can be configured by SPI |
-
2010
- 2010-03-10 CN CN201010047666.4A patent/CN108401580B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222210A (en) * | 2017-06-07 | 2017-09-29 | 中国电子科技集团公司第二十四研究所 | It is a kind of that the DDS systems of numeric field clock phase can be configured by SPI |
| CN107222210B (en) * | 2017-06-07 | 2020-08-04 | 中国电子科技集团公司第二十四研究所 | DDS system capable of configuring digital domain clock phase by SPI |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108398605B (en) | Ground nuclear explosion electromagnetic pulse composite environment simulation system and simulation method | |
| CN108401580B (en) | A kind of nuclear explosion electromagnetic pulse signal source simulator | |
| CN205992891U (en) | One kind can harmonic transient electromagnetic pulse simulator apparatus | |
| Sheikh et al. | Real-time simulation of microgrid and load behavior analysis using FPGA | |
| CN108233873A (en) | A kind of multi-channel noise simulation generator | |
| CN204666810U (en) | Based on the general radar signal simulation generator of DDS | |
| Chen et al. | Rectangular pulse sharpening of high voltage pulse transformer based on magnetic compression switch technology | |
| CN205142160U (en) | Synchronous degree of depth storage ns level pulse many reference amounts generator of power frequency | |
| CN104679925A (en) | FPGA (Field Programmable Gate Array)-based spread spectrum signal generator | |
| Changlin et al. | Electromagnetic compatibility analysis and design for digital signal controllers | |
| CN108011590A (en) | A kind of high-precision low-power consumption RC oscillators | |
| Luo et al. | Equivalent circuit modeling of electro-magnetic pulse generator for typical immunity simulation | |
| CN108120859B (en) | Active electromagnetic shielding generating device | |
| CN205754272U (en) | A kind of digital technology experimental system pulse signal generation module based on CPLD | |
| CN203013026U (en) | Digital logic and system design experimental box | |
| Homsup et al. | FDTD simulations of a mobile phone operating near a metal wall | |
| Wei et al. | Transmission Line Decoupling Based Parallel Simulation Method of an Active Distribution Network | |
| CN103852657A (en) | Lightening electric field simulation device based on parallel plate transmission line | |
| CN107168188A (en) | A kind of nonlinear properties analogue means | |
| CN109905101A (en) | Bipolar pulse generating device | |
| CN203825051U (en) | Novel power network test signal generating device | |
| Javor et al. | Measured electrostatic discharge currents modeling and simulation | |
| Dolapchiev et al. | HIGH VOLTAGE PULSE GENERATORS LOAD DEVICE | |
| Botea et al. | Modeling, Simulation and Analysis of Disturbances and Defects in Low Voltage Instalations | |
| Wu et al. | The device parameters simulation of electrical fast transient generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR03 | Grant of secret patent right | ||
| GRSP | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| DC01 | Secret patent status has been lifted |