High-frequency direction finding

Gething, P. J. D.

doi:10.1049/piee.1966.0007

Cited by 20 publications

(11 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Initially, geolocation of HF transmitters was performed using angular domain methods which measures the direction of arrival (DoA) of the incoming signal at multiple locations and the transmitter location was found by triangulation. Numerous methods to evaluate the DoA of the HF signals are proposed by Gething . Most of these direction finding (DF) systems require the deployment of several large antenna arrays.…”

Section: Introductionmentioning

confidence: 99%

Accurate time difference of arrival estimation for HF radio broadcast signals

Jain

Pagani

Fleury

et al. 2018

Micro & Optical Tech Letters

View full text Add to dashboard Cite

Geolocation of high frequency (HF) transmitters at distances in the order of 2000 km is possible by exploiting the time difference of arrival (TDoA) among multiple distributed single antenna receivers. HF radio signals propagate via skywaves between the Earth‐Ionosphere medium and the signals are received through non‐line‐of‐sight mode. This experimental study demonstrates that it is possible to evaluate the TDoA between two receivers for a HF radio broadcast signal propagating through the ionospheric channel. The HF propagation path geometry for one hop propagation mode is explained. Simulations are performed using this model to evaluate the theoretical TDoA between the signals received at two synchronized receivers. In the second step, two remotely controllable receivers built to capture distinct HF signals are deployed in two cities in France. Radio broadcast signals from different HF transmitters across Europe are captured simultaneously on the two synchronized receivers. The TDoA is obtained by cross‐correlating the captured signals from the receivers. The TDoA obtained by experimental and simulation methods are compared for different radio propagation paths and results show some very good agreement.

show abstract

Section: Introductionmentioning

confidence: 99%

Accurate time difference of arrival estimation for HF radio broadcast signals

Jain

Pagani

Fleury

et al. 2018

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…In such contexts, it is interesting to locate the position of the transmitter (Tx) by using the different types of information acquired from the signals received at the receiving station. Different methods are proposed to find the Direction of Arrival (DoA) of the signals by deploying a large array of co-located antennas [1]. Using time domain HF geolocation techniques such as Time of Arrival (ToA) and TDoA, signals received at different non co-located single antenna receivers (Rx's) are sufficient to locate the position of the Tx [2].…”

Section: Introductionmentioning

confidence: 99%

Efficient time domain HF geolocation using multiple distributed receivers

Jain

Pagani

Fleury

et al. 2017

2017 11th European Conference on Antennas and Propagation (EUCAP)

View full text Add to dashboard Cite

“…HF geolocation of remote transmitter by processing the signals reflected from ionosphere has long been studied for military and civil applications since World War II [1,8,11]. Conventional HF geolocation can be classified into two classes.…”

Section: Introductionmentioning

confidence: 99%

Passive TDOA and DOA based HF geolocation without ionosphere information

Wang¹,

Jiang²,

Razul

et al. 2015

2015 10th International Conference on Information, Communications and Signal Processing (ICICS)

View full text Add to dashboard Cite

Conventional HF geolocation method based on ray tracing relies on strict requirement on ionosphere information while line-of-bearing based geolocation method and time difference of arrival (TDOA) based method require fine angular resolution and large aperture array. In practical applications, these methods will be subject to practical constraints, especially when operated in land-limited environment. This paper investigates a new approach of HF geolocation based on TDOA and direction of arrival (DOA) of multipaths, which can alleviate the strict requirements on ionosphere information and large aperture array. A nonlinear optimization problem is formulated based on the virtual path propagation model and solved by numerical optimization methods. Simulation studies are provided to illustrate the potential of the proposed method.

show abstract

High-frequency direction finding

Cited by 20 publications

References 42 publications

Accurate time difference of arrival estimation for HF radio broadcast signals

Accurate time difference of arrival estimation for HF radio broadcast signals

Efficient time domain HF geolocation using multiple distributed receivers

Passive TDOA and DOA based HF geolocation without ionosphere information

Contact Info

Product

Resources

About