Dynamically Reconfigurable Software Defined Radio for Gnss Applications
نویسندگان
چکیده
Historically, the military has used special purpose Global Positioning System (GPS) radios for radio navigation. This has the disadvantage of locking users into fixed technology solutions designed to meet a fixed set of requirements. Software Defined Radios (SDR) have the advantage of being able to easily adapt to provide new capabilities using current generation technology. Continued improvements in SDR technology are enabling their use for Global Navigation Satellite Systems (GNSS) applications that require small form factor, low-power designs. This has the added benefit of allowing the signal processing algorithms for future GPS signals to be included in the GNSS SDR design without changing or modifying the hardware of the GPS receiver. This paper describes a GNSS SDR reconfigurable architecture that leverages the flexibility of a SDR to re-use resources for processing the different GPS signals. The paper also discusses the benefits of this GNSS SDR approach for military and civil users compared with conventional special purpose GNSS receiver solutions.
منابع مشابه
Benefits of a Reconfigurable Software GNSS Receiver in Multipath Environment
The increased interest for applications based on both navigation and communication systems, represents an important driver for the design and implementation of innovative receivers architectures. The realization of civil GPS applications, the advent of the European navigation system Galileo, and the integration of localization services in communication network make the reconfigurability an indi...
متن کاملA Software Defined Communications Baseband Design
Software-defined radios offer a programmable and dynamically reconfigurable method of reusing hardware to implement the physical layer processing of multiple communications systems. An SDR can dynamically change protocols and update communications systems over the air as a service provider allows. In this article we discuss a baseband solution for an SDR system and describe a 2 Mb/s WCDMA desig...
متن کاملA Dynamically Reconfigurable Transceiver for Software Defined Radio
Software Defined Radio (SDR) is an emerging field in the area of Digital Communications. The ever growing interest in SDR systems lies in the fact that it can provide multi-standard architecture. This paper describes a dynamically reconfigurable architecture of an SDR system on a Model Based Development (MBD) platform which is a new approach and saves a considerable amount of time in design, te...
متن کاملMulticore Software-Defined Radio Architecture for GNSS Receiver Signal Processing
We describe a multicore Software-Defined Radio (SDR) architecture for Global Navigation Satellite System (GNSS) receiver implementation. A GNSS receiver picks up very low power signals from multiple satellites and then uses dedicated processing to demodulate and measure the exact timing of these signals from which the user’s position, velocity, and time (PVT) can be estimated. Three GNSS SDR ar...
متن کاملDynamic Reconfiguration Technologies Based on FPGA in Software Defined Radio System
Partial Reconfiguration (PR) is a method for Field Programmable Gate Array (FPGA) designs which allows multiple applications to time-share a portion of an FPGA while the rest continues to operate unaffected. As a result, the physical layer processing architecture in Software Defined Radio (SDR) systems can benefit from reduced complexity and increased design flexibility, as different waveform a...
متن کامل