发明名称 |
DIGITAL SYSTEM FOR ESTIMATING SIGNAL NON-ENERGY PARAMETERS USING A DIGITAL PHASE LOCKED LOOP |
摘要 |
A digital system of measuring parameters of the signal (phase, frequency and frequency derivative) received in additive mixture with Gaussian noise. The system is based on the use of variables of a PLL for calculating preliminary estimates of parameters and calculating the corrections for these estimates when there is a spurt frequency caused by a receiver motion with a jerk. A jerk is determined if the low pass filtered signal of the discriminator exceeds a certain threshold. The jerk-correction decreases the dynamic errors. Another embodiment includes a tracking filter for obtaining preliminary estimates of parameters to reduce the fluctuation errors. Estimates are taken from the tracking filter when there is no jerk and from the block of jerk-corrections when there is a jerk. |
申请公布号 |
WO2016122341(A1) |
申请公布日期 |
2016.08.04 |
申请号 |
WO2015RU00043 |
申请日期 |
2015.01.26 |
申请人 |
LIMITED LIABILITY COMPANY "TOPCON POSITIONING SYSTEMS" |
发明人 |
PRASOLOV, VICTOR ANDREEVICH;ZHODZISHSKY, MARK ISAAKOVICH;ZHODZISHSKY, DMITRY MARKOVICH |
分类号 |
H03L7/085 |
主分类号 |
H03L7/085 |
代理机构 |
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代理人 |
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地址 |
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