Double-DSP (Digital Signal Processor) step-by-step type POS (Point Of Sale) real-time navigation resolving system

Abstract

The invention discloses a double-DSP (Digital Signal Processor) step-by-step type POS (Point Of Sale) real-time navigation resolving system which comprises a first processing device and a second processing device, wherein the first processing device comprises a first DSP processor, a first FPGA (Field Programmable Gate Array) circuit and a UART (Universal Asynchronous Receiver / Transmitter) serial circuit; the first FPGA circuit is connected with the first DSP processor; the second processing device comprises a second DSP processor and a second FPGA circuit connected with the second DSP processor. Due to the adopted double-DSP structure, labor division of algorithm and product function development is achieved, the influence of a user function code on the algorithm is reduced or even eliminated, the working efficiency of developers is improved, and the research and development period of a product is shortened.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to a dual-DSP step-by-step POS real-time navigation solution system. Background technique [0002] The Position and Orientation System (POS) is a special inertial / satellite combined measurement system that can accurately measure motion parameters such as the position, velocity, and attitude of the remote sensing load center. It is a high-resolution aerial remote sensing system that realizes motion compensation. key equipment. With the innovation of flight platform technology, aerial remote sensing is developing towards multiple remote sensing loads and array loads. However, due to the fact that multiple observation loads are distributed in different positions of the non-rigid platform, and there are factors such as deflection deformation and vibration, the traditional single POS cannot achieve multi-point high-precision measurement. At this time, each load needs to use POS t...

AI Technical Summary

Problems solved by technology

Due to the complexity of the high-precision real-time navigation combination algorithm, it takes up a lot of MCU (microprocessor) resources, and the application code of the POS product to realize the user's functional requirements will also occupy the MCU resources. Different user needs lead to different MCU resources.

Often in order to meet the needs of different users or to update and upgrade functions, it is necessary to reorganize and write the combination algorithm code and function application code of the same precision, which not only prolongs the product development cycle, but also reduces the consistency of product performance, and requires developers to be more capable. very high

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