A 2.0–2.9 GHz ring-based injection-locked clock multiplier using a self-alignment frequency-tracking loop for reference spur reduction

Integration ◽  
2022 ◽  
Author(s):  
Rongjin Xu ◽  
Dawei Ye ◽  
C.-J. Richard Shi
Keyword(s):  
Tracking Loop ◽  
Frequency Tracking ◽  
Reference Spur

Implementation and Performance Assessment of a Vector Tracking Method Based on a Software GPS Receiver

2011 ◽  
Vol 64 (S1) ◽  
pp. S151-S161 ◽  
Author(s):  
Sihao Zhao ◽  
Mingquan Lu ◽  
Zhenming Feng
Keyword(s):  
Global Positioning System ◽  
Carrier Frequency ◽  
Gps Receiver ◽  
Tracking Loop ◽  
Frequency Tracking ◽  
Tracking Method ◽  
Global Positioning ◽  
Vector Tracking ◽  
Tracking Loops ◽  
And Performance

A number of methods have been developed to enhance the robustness of Global Positioning System (GPS) receivers when there are a limited number of visible satellites. Vector tracking is one of them. It utilizes information from all channels to aid the processing of individual channels to generate receiver positions and velocities. This paper analyzes relationships among code phase, carrier frequency, and receiver position and velocity, and presents a vector loop-tracking algorithm using an Extended Kalman filter implemented in a Matlab-based GPS software receiver. Simulated GPS signals are generated to test the proposed vector tracking method. The results show that when some of the satellites are blocked, the vector tracking loop provides better carrier frequency tracking results for the blocked signals and produces more accurate navigation solutions compared with traditional scalar tracking loops.

New wide-range fast-acting frequency tracking loop

1992 ◽  
Vol 28 (7) ◽  
pp. 605
Author(s):  
B.C. Sarkar ◽  
M. Nandi ◽  
S. Chattopadhyay
Keyword(s):  
Tracking Loop ◽  
Frequency Tracking ◽  
Wide Range ◽  
Fast Acting

A zero charge-pump mismatch current tracking loop for reference spur reduction in PLLs

2015 ◽  
Vol 46 (6) ◽  
pp. 422-430 ◽  
Author(s):  
R.R. Manikandan ◽  
Bharadwaj Amrutur
Keyword(s):  
Charge Pump ◽  
Tracking Loop ◽  
Zero Charge ◽  
Reference Spur

Design of Frequency Tracking Loop for Satellite-Based AIS

2014 ◽  
Vol 9 (7) ◽  
Author(s):  
Shexiang Ma ◽  
Yaping Feng
Keyword(s):  
Tracking Loop ◽  
Frequency Tracking
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