搜索结果: 1-5 共查到“信息处理技术 Loran”相关记录5条 . 查询时间(0.078 秒)
In this paper, we examine considerations involved in data transmission schemes on LORAN. Given the considerations, we propose several schemes to encode data onto the LORAN signal. One major purpose of...
As the Loran groundwave propagates, the signal is delayed. Additional Secondary Factor (ASF) is the value of the delay of the signal over the actual terrain relative to an all seawater path. The envel...
Analysis of Noise and Cycle Selection in a Loran Receiver
Analysis of Noise Cycle Selection Loran Receiver
2015/6/25
Thermal and atmospheric noise distort envelope measurements in a Loran receiver, and may cause the receiver to select the wrong cycle during signal acquisition. A cycle error would persist during sign...
With its large-amplitude and short-duration pulses,atmospheric noise, produced by electrical discharges within clouds, dominates the low-frequency spectrum. Unless mitigated, this noise, which enters ...
Geoencryption Using Loran
Geoencryption Loran
2015/6/25
Geoencryption is the use of position navigation and time (PNT) information as means to enhance the security of a traditional cryptographic system. The information is used to generate an additional sec...