Cse satrack ppt

SATRACK
R.SUSHANTH REDDY
15841A05F8
CSE-4C

contents
 Introduction.
 Why Satrack need.
 How Satrack works.
 Hardware required.
 Implementation.
 Advantages.
 Applications.
 Future Directions.
 Conclusion.

Introduction
 Satrack receives, rebroadcast, records & tracks the satellite
signals.
 Guidance system.
 Data use as Error model.
 Integrated with Every Weapon System.
 Provides the Post-Flight processing System.

Why Satrack need?
 Early weapon systems depended on the impact of scoring
techniques.
 Accuracy was less.
 Lack of accuracy in flight test Environment.
 Broad ocean test ranges.
 Lack of Progressive Hardware & Software.

Hardware required…
Sharc Processor.
Data Simulators.
Telemetry.
Satracker.

TELEMETRY
 Telemetry is an automated communications
process by which measurements and other
data are collected at remote or inaccessible
points and transmitted to receiving equipment
for monitoring. The word is derived from Greek
roots: tele = remote, and metron = measure.

Satracker
 Data is accessible via the internet through C3 Location
Systems.
 Configurable using a laptop or PDA.

SHARC PROCESSOR
 THE SHARC is unique in that its internal
memory is capable of holding a large program
as well a large amount of data
 It is designed for point to point connection
 Sharc has 6 link ports that can transport data
at high rate.

EVOLUTION
 SATRACK I : A technology project to develop
and
demonstrate the instrumentation and
processing system using the Trident I missile
(1973–1983).
 SATRACK II : The operational system
designed tomeet system requirements for the
Trident II missile(1983–present).
 SATRACK III : Current system upgrade and
future applications.

Future Directions…
 Batch mode Processing
 Full Digital Implementation.
 Evaluation Capability for cumulative flight test Accuracy.
 Flexible architecture Receiver.

EVALUATION CAPABILITY FOR
CUMULATIVE FLIGHT TEST ACCURACY
 The limitations of the test geometry prohibit
observations of all the errors in any single
flight test. Since each test flight provides
observations of the underlying system missile
guidance error models, the data can be
combined from may flight tests. The final
cumulative analysis of flight test data produces
a guidance error model of the weapons
system.

FULL DIGITAL
IMPLEMENTATION
 . The full digital implementation is of the
Portable ground equipment and processing
facility. So, the results are expected to be
repeatable. This is a very big improvement
over the Analog circuitry such as the Analog
PLLs used for carrier- phase tracking loop. In
addition, the digital implementation removes
the need for periodic hardware calibration that
accompanies the analogckt.

BATCH MODE PROCESSING
This type of processing allows hardware to
operate with software like flexibility. As the pure
software system was too slow, hardware that is
fully configurable under software control
implemented the most computing intensive
portions of the process such as signal
correlation, generation of local code and carrier
signal mixing. It is possible to acquire the signal
with virtually no acquisition delay by conducting
extensive searches with initial batch of data until
all the signal is found.

FLEXIBLE ARCHITECTURE
RECEIVER
 The batch mode processing has been applied
to stand alone real time capable receiver
called FAR. It retains the essence of batch
mode architecture. While maintaining the
capability to process the data in real time. FAR
is a single channel L1 C/A only receiver with a
front-end data storage memory that buffers
unto one s of data. It can track up to 16
satellites in real time without any loss from
channel multiplexing

Advantages
 Supervisory Position Reporting.-Device wakes up, locates
by GPS, transmits location, resumes sleep mode. Up to 12
programmable sleep intervals or wake up settings.
 External Sensors Supported.-Sensors can be Dry contact,
Custom Serial, Universal Multimode Sensors (humidity, light,
refrigerated temperature, door, dry contact).
 Integrated Motion Sensor.-Message on start and stop,
engage interval override on motion for time or motion
duration.
 Geo-Fencing.-Device alarms when it is outside the
geographical boundaries set for it.
 Field Programmable.-Configurable using a laptop or PDA.

Applications
1. The best flight path for
Aircrafts during post flight
processing. Provides error
guidance model.
1) FLY – BY – WIRE SYSTEM (DRONES)

2. Orbitary Determination of
Vehical Tracking.

3.In the Satellite Communication used as
recorder ,guidance system, and Interpreter.

Conclusion
• SATRACK is a significant contributor to the successful
development of and operational success of the trident weapons
system.
• It provides a unique monitoring function that is critical to the
maintenance of strategic weapons systems.
• The development of SATRACK looks forward to the
implementation of the Low Cost Missile Test Kit. one other main
development from this technology was the development of
sophisticated tools for optimal target patterning. Instrumentation,
analytic methods, and modelling and the use of limited and
expensive flight tests assets were also born out of the SATRACK
research

References
 www.google.com
 www.wikipedia.com
 www.studymafia.org

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