The idea behind differential GPS is to remove as much errors as possible fROM the range measurements by establishing these errors at a reference site. In its most simple setup, a GPS receiver is located at a well surveyed position and its (pseudo) range measurements are compared with the actual calculated range fROM this receiver to the SV s. The differences between measured ranges and calculated ranges at the reference receiver are applied as corrections to the ranges measured by other receiver(s) close by.
The MIPS32® 4KEm™ core fROM MIPS® Technologies is a member of the MIPS32 4KE™ processor core family. It is a
high-performance, low-power, 32-bit MIPS RISC core designed for custom system-on-silicon applications. The core is
designed for semiconductor manufacturing companies, ASIC developers, and system OEMs who want to rapidly integrate
their own custom logic and peripherals with a high-performance RISC processor. It is highly portable across processes, and
can be easily integrated into full system-on-silicon designs, allowing developers to focus their attention on end-user
products. The 4KEm core is ideally positioned to support new products for emerging segments of the digital consumer,
network, systems, and information management markets, enabling new tailored solutions for embedded applications.