High-dynamic satellite navigation receiver performance evaluating method

Abstract

The invention relates to the satellite navigation receiver testing and evaluating technology and discloses a high-dynamic satellite navigation receiver performance evaluating method. The high-dynamic satellite navigation receiver performance evaluating method solves the deficiencies of high cost, long time and poor coverage of high-dynamic satellite navigation receiver performance evaluation. The high-dynamic satellite navigation receiver performance evaluating method comprises the steps of editing a test scene according to full-dynamic requirements, selecting multi-mode, multi-interface and wired / wireless testing, and performing performance computation and evaluation on positioning accuracy, speed accuracy, pseudo-range accuracy and pseudo-range rate precision. The high-dynamic satellite navigation receiver performance evaluating method achieves economic, rapid and full-dynamic receiver performance evaluation and meet performance evaluation requirements during receiver development and production.

Description

technical field [0001] The invention relates to a satellite navigation receiver test and evaluation technology, which calculates positioning accuracy, speed accuracy, pseudo-range accuracy and pseudo-range rate accuracy in a full dynamic range for a high dynamic receiver, so as to realize comprehensive evaluation of receiver performance. Background technique [0002] The satellite navigation receiver is the core component of the aircraft navigation system, and generally consists of three parts: receiving antenna, information processor and connecting cable. With the continuous improvement of the flight speed and maneuverability of the aircraft, the dynamic requirements for the receiver are also continuously improved, and there are new requirements for the performance evaluation method of the receiver. Traditional receiver performance evaluation methods generally use actual satellite signals for testing, and test accuracy and dynamics through sports car experiments or aircraft...

AI Technical Summary

Problems solved by technology

Traditional receiver performance evaluation methods generally use actual satellite signals for testing, and test accuracy and dynamics through sports car experiments or aircraft loading. However, the flight speed of high dynamic receivers can reach 5000m / s and the acceleration can reach 1000m / s 2 , jerk up to 1000m / s 3 , the traditional test method has no way to achieve such a high dynamic range, and its test coverage is insufficient

On the other hand, the traditional test method, whether it is a sports car experiment or an aircraft, has cumbersome test preparation work, high time and labor costs, and is not suitable for mass production

[0003] In addition, the existing performance evaluation methods using satellite navigation signal simulators usually perform performance evaluation for a single dynamic requirement. To complete all tests, repeated tests in multiple scenarios are required, which is inefficient and cannot obtain a full dynamic comprehensive performance evaluation.

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