This document summarizes SATRACK, a satellite mission tracking system used for guidance systems in ballistic missiles. SATRACK receives, records, and tracks satellite signals. It provides post-flight processing and integrates with weapon systems. SATRACK works by having a GPS translator on missiles receive GPS signals, which are transmitted to ground stations for recording and post-processing. This allows for real-time tracking and evaluation of flight path accuracy to improve guidance systems. SATRACK applications include aircraft flight path guidance, drone tracking, and satellite communication recording and guidance. It aims to further digitization and flexible receiver architectures.

1. SATRACK

2. CONTENTS
I. Introduction
II. Why Satrack need.
III. How Satrack works.
IV. Hardware required.
V. Implementation.
VI. Advantages.
VII. Applications.
VIII.Future Directions.
IX. Conclusion.

3. Introduction
 SATRACK is the acronym for SATellite mission
TRACKing system.
 SATRACK is the evaluation methodology designed
for the guidance system of ballistic missile.
 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.

4. Why Satrack need?
i. Early weapon systems were based on radars which is
replaced now by GPS(Global Positioning System).
ii. Accuracy was less.
iii. Lack of accuracy in flight test Environment.
iv. Broad ocean test ranges.
v. Lack of Progressive Hardware & Software.

5. How Satrack Works?
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6. Hardware required…
1. Sharc Processor.
2. Data Simulators.
3. Telemetry.
4. Satracker.

7. SATRACKER
Data is accessible via the internet through C3
Location Systems.
Configurable using a laptop or PDAEnter
title

8. Major modules of the Satrack System
1.GPS Translator
It is a flight hardware which remains fixed in the missile. The GPS signals are received
by the translator. These signals are amplified and shifted to an intermediate frequency.
Further, signals get filtered for covering the satellite signal modulation bandwidth. After
that, the signals get amplified for transmitting to the ground stations.
2.Ground Telemetry Stations
The signals are received by the missile from the GPS satellites and they get translated to
a different frequency. They further relayed to the ground telemetry stations. The data for
the playback and post processing is recorded by the ground telemetry stations. The
missile receives satellite signals that are translated to the S-band frequencies with the
use of the missile hardware named as translators. The data is then recorded from the
ground-based telemetry station after reception via the antenna after digitizing the signals.
In order to offer real-time tracking solutions, the C/A signals are used by the ground sites.

9. 3.Post Flight Tracking and Data Processing
This module is most vital part of the Satrack technology. The GPS signals are
received, tracked and recorded for many days surrounding the missile flight at the
GPS tracking sites. Further, these signals are received by the missile during the
flight and translated in frequency. It gets further transmitted to the surface station.
The recorded data is used by the post-flight process to offer satellite ephemerides
clock. This tracked signal data is estimated from the post-flight receiver. All the
data element and the system models are used by the missile processor after the
signal tracking data for producing.

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

11. Applications
1. The Satrack offers error guidance model for the best flight
path for aircraft.
2. It is used as a recorder, interpreter, and guidance system
in the satellite communication.
3. Fly – By – Wire System (DRONES)

12. 4. Orbitary Determination
of Vehical Tracking.
5. In the Satellite
Communication used as
recorder ,guidance system,
and Interpreter.

13. Future Directions
I. Batch mode Processing
II. Full Digital Implementation.
III. Evaluation Capability for
cumulative flight test Accuracy.
IV. Flexible architecture Receiver.
Why Satrack need?
i. Early weapon systems depended on
the impact of scoring techniques.
ii. Accuracy was less.
iii. Lack of accuracy in flight test
Environment.
iv. Broad ocean test ranges.
v. Lack of Progressive Hardware &
Software.

14. Conclusion
Over the years, there is a great contribution made by the Satrack for the successful
development and success of the Trident weapon system. There is an important role
played by it in offering a perfect monitoring system for the maintenance of the missile
trajectory. The recent research and development in this field are responsible for bringing
the latest technology translator, receiver, data recorders and missile processors in the
programs related to the missile flight.
The error model is evaluated and monitored by these programs. Further, these models
assist in the identification of the major error contributors that are the reason for the
missile path’s misalignment. The implementation of the Low-Cost Missile Test Kit looks
promising because of the Satrack. In addition to this, the system also developed
sophisticated tools for analyzing methods, optimal target perception, and expensive flight
tests assets.

15. Thank you
ARINDAM DAS