Services
Since our founding we have performed a variety of services for our clients.
SYSTEM ENGINEERING
Complete design of next-generation satellite and other wireless networks and technologies.
CUSTOM DESIGN AND DEVELOPMENT
Bespoke hardware and software development.
TEST-RELATED SERVICES
Field trials, test development and execution, and other test-related services.
System Engineering
Square Peg has many years of experience in satellite systems engineering, including link budgets, RF chains, modulation and coding, and protocol analysis. We also have experience with interference analysis between satellite services, and between terrestrial and satellite services; GEO and LEO orbital constellations; L-, S-, and Ku/Ka-bands; mobile authentication and encryption techniques; feederlink analysis; and user-terminal capabilities and constraints. This is supplemented with experience in terrestrial Wi-Fi and 3G/4G/5G systems.
Typical Tasks include:
Simulations and studies
Proof-of-concept implementations
Specification of physical layer requirements such as RF, modulation, and coding
Specification of access stratum requirements and analysis of throughput
Translation of high-level requirements to system specifications and confirming testability
Analysis of requirements within the constraints of satellite capabilities and external factor
SYSTEM ENGINEERING EXAMPLES
System design (including modulation and coding, protocols, link budgets etc.) for a live inflight television service, and subsequent development of base station and airborne receiver hardware and software
Analysis of user-terminal implementation tradeoffs for next-generation L-band mobile-satellite terminals
Analysis of adjacent spotbeam interference in multi-beam satellite systems, and the benefits of multi-user detection to mitigate this.
Analysis of satellite throughputs for different protocol configurations and compression algorithms
Feasibility study for a next-generation packet-switched satellite system, including analysis and simulation
Design of satellite air-interface to provide GPS augmentation for high-precision location services
Analysis of RF receiver chain for aeronautical mobile satellite terminals
Custom Design and Development
CUSTOM DESIGN AND DEVELOPMENT EXAMPLES
Design of airborne radio relay network, including flight testing to determine realistic channel and interference conditions
Development of BGAN return channel equalizer and associated technology transfer package
Development of the Radio Frequency Subsystem and Channel Unit Subsystem for a portable BGAN Satellite Access Station to demonstrate multicast applications such as netted voice. (more)
Aeronautical Test Ground Earth Station
Proof-of-concept implementations of Multi-User Detection (MUD) receivers for Inmarsat’s MPDS and BGAN LDR services
Development of satellite-subnetwork and core network emulator for end-to-end application testing
Development of platform and scripts for testing the continuity, voice quality and priority/preemption functionality of circuit-switched and VoIP calls for SwiftBroadband safety services.
Test-related Services
Square Peg performs automated test equipment (ATE) development, test script development, carries out field trials and provides other test-related services.
TESTING EXAMPLES
Testing of the spot beam and satellite handover behaviour of Aeronautical Earth Stations (AESs) flying simulated flight routes
Type approval testing of aeronautical satcom equipment
Demodulator performance characterization for BGAN bearers in various channel conditions
Script development for automated measurement of BGAN RAN demodulator performance
Script development for automated measurement of BGAN RAN demodulator performance
Signal measurement campaign to characterize the performance of arrays of omni-directional antennas in a maritime environment. (more)
Signal measurement campaign to determine the feasibility of using unlicenced spectrum for aeronautical applications
Characterization of the impact of LTE interference on aeronautical and maritime terminals operating over Inmarsat’s L-band network.
4017 Carling Avenue, Suite 200
Ottawa, ON, Canada K2K 2A3
Tel + 1 613 271 0044
Fax+ 1 613 271 3007