Signal Simulation on Static Test of Guidance Station of One Antiaircraft Missile
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Signal Simulation on Static Test of Guidance Station of One Antiaircraft Missile
Ke LI 0
Lian Yan SHI 0
Xin HE 0
Jin LUO 0
0 4th department, Shijiazhuang Mechanic Engineering College , Shijiazhuang, HEBEI, CHINA, 050003
In order to improve trainees' operational quality of static test of guidance station of one antiaircraft missile, a static testing simulator is necessary to gain the goal. It is obvious that the key problem of developing the simulator is how to generate the static testing signals of the simulator. Aiming to solve the problem, at first, the paper adopts a standard called signal testing definition(STD), which is applied to describe simulating signals used for static testing simulation of guidance station of one antiaircraft missile; then those simulating signals for the static testing simulation are implemented based on the platform Labwindows/CVI, and D/A converters are employed for generating physical static testing signals, which are outputted through operational panels or interfaces of the static testing simulator. So the mentioned process could be helpful to realize the static testing simulator of guidance station of one antiaircraft missile.
1 Introduction
People said the more training, the high operational quality.
In order to improve trainees’ operational quality of static
test of the guidance station of one antiaircraft missile, a
static testing simulator is necessary to gain the goal. It is
obvious that the key problem of developing the simulator
is how to generate the static testing signals of the simulator.
The paper tries to solve the key problem to help develop
the simulator.
2 Simulating requirements analysis
The static test of the guidance station of one
antiaircraft missile has a number of 320 plus test project, it
is one of the equipment daily maintenance project in order
to test whether working state of the equipment is normal,
The method is to apply incentives in different testing
points of the equipment, then to measure corresponding
outputs to judge state of the equipment. Therefore, the
realization of the static testing simulator or test simulating
function is to produce the various all kinds of response
signals of the equipment. According to the characteristics
of the static testing training and requirements of the
guidance station of one antiaircraft missile, analysis on
simulation requirements would be on the following three
facets for developing the static testing simulator of one
antiaircraft missile.
2.1 Classification of simulating signals
(
1
) Transient voltages and currents: the initial voltage
and current for the equipment;
(
2
) The DC voltages and currents: the stable voltage
and current for the equipment;
(
3
) AC voltages: output information, noise and other
signals;
(
4
) Controlled voltages: the equipment controlled
voltage;
(
5
) Resistance parameters: circuit’s resistance of the
equipment, breakover resistance, etc.
(6) Complex waveform signals: the rectangular wave
with adjustable width or frequency modulation etc.
controlled by the incentive voltage or power time, as well
as various instruction outputting, signals such as pulse
front and back edge etc.;
(7) Sound and light signals: sound and light output
when the equipment works;
(8) The state signals: they are controlled by frequency,
voltage, time, or other inventive signals, in other words,
they are changing signals of controlled state or time;
(9) Visual signals: focus changing, target, capture line,
self-check lamp, etc.
(10) Other signals: output signals of the signal
generator without power, self-check signal of voltage
stabilizer circuit, etc.
2.2 Analysis on signal relationship
The static testing operation of the equipment is not
only to achieve the simulation of various signals or
parameters, but also to simulate logical function of the
actual system, signal control relationship, etc., and analysis
and identification on various incentives.
(
1
) Relationship among the launching control program
and the control instructions;
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(
2
) Relationship among information signals, serial data
and instructions;
(
3
) Visual signals and detecting states;
(
4
) Relationship between serial commands and
instructions;
(
5
) Control relationship among other signals.
2.3 Signal stability
(
1
) AC voltage: 2.5% of the nominal value;
(
2
) DC voltage: 2% of the nominal value;
(
3
) DC current: 1.5% of the nominal value;
(
4
) Frequency/time: 0.1% of the nominal value;
(
5
) Insulating resistance: 1% of the nominal value;
(6) Coefficient of instructions: 1% of the nominal value.
3 signal description and modeling
One signal of static test of the guidance station of one
antiaircraft missile is selected as an example, with which
the method of signal modeling and generating in the paper
is depicted in detail. The selected signal waveform is
shown as Figure 1.
3.1 Signal simulating model based on signal testing definiti (...truncated)