|
|
|
| Research of Detection Technique of Navigation Signal’s Evil Waveform |
| Wang Bin Pang Yan Liu Hui-jie |
| Shanghai Engineering Center for Microsatellites, Shanghai 200050, China |
|
|
|
|
Abstract The detection of navigation signal’s evil waveform based on multicorrelator is an important issue of GNSS integrity monitoring. This paper defines the effect of 2nd-order step threat model of evil waveform on the code tracking loop, analyzes the multicorrelator technique of detection system based on Local/Wide Area Augmentation System (LAAS/WAAS). From the perspective of simplifying ground integrity channel and shortening the time consumption, this paper puts forward a new technique based on satellite autonomous integrity monitoring. The simulation of the detection capability and efficiency result in a 0.3 Tc decrease of the detection deviation of the technique based on SAIM with a 20 dB increasing of SNR over the technique based on LAAS, which makes a great significance of integrity monitoring.
|
|
Received: 01 November 2010
|
|
|
|
Corresponding Authors:
Wang Bin
E-mail: sacromyelitis@hotmail.com
|
|
|
|
|
|
|
2011, Vol. 33 
