We provide complete solutions to develop and operate advanced high-performance GPS receiver (and other navigational) systems through many different software and hardware products. These products integrate modularly and seamlessly, giving users a friendly, upgradable, flexible, and extremely powerful platform. Users can custom-design and build architectures, modify them, evaluate their performance in simulated and live situations, and deploy them, all with the same GPS products. These products include the following components:

Antenna and RF Front Ends receive signals from all satellites, downconvert them to suitable IF frequencies, digitize IF signals (from 2 bits to 12 bits and at around 5 MSPS to 60 MSPS per channel; all parameters user-selected), and transfer them to the computing platform, typically a PC (Personal Computer).

The open-architecture Software Receiver recovers the signal and performs other operations in the PC. The user can configure the software with “drag and drop” components, constructing a working GPS receiver in minutes. The software components include tools for signal monitoring and visualization. They parallel the hardware building blocks, and translate directly to prototype units.

Once the software receiver transfers data to the PC, users can process the data immediately (real-time operation), or store it for subsequent analysis (post-processing). RAM-based storage works best in the short term; hard disk-based storage works best in the long term. We offer all these options, using modular data-acquisition, data transfer, and storage mechanisms. At a sampling rate of 60 MSPS, users can sample and store two simultaneous channels (L1 and L2) for several hours using our Hard Disk-Based Storage System.