A new design of low-power portable digital ionosonde

Abstract The Ionospheric Laboratory of Wuhan University is interested in upgrading its instrumentation replacing the WIOBSS (Wuhan Ionospheric Oblique Backscattering Sounding System) with a more flexible and automatic ionosonde. Then the updated ionosonde WMI (Wuhan Multifunctional Ionosonde) with automatic ionogram scaling has been developed to satisfy future research. The new system not only inherited some classic techniques from WIOBSS, such as the pulse compression and the coherent integration techniques, but also made great improvements in hardware design and software updating. This paper mainly introduces evolutions of this new ionosonde in both digital transceiver and digital signal processing domain, and also presents some observations.

[1]  Murray. Parkinson,et al.  Southern polar cap DPS and CADI ionosonde measurements: 1. Ionogram comparison , 2004 .

[2]  P. Bello.  Characterization of Randomly Time-Variant Linear Channels , 1963 .

[3]  Shuzhu Shi,et al.  A Low-Power and Small-Size HF Backscatter Radar for Ionospheric Sensing , 2009, IEEE Geoscience and Remote Sensing Letters.

[4]  Cesidio Bianchi,et al.  Signal processing techniques for phase-coded HF-VHF radars , 2003 .

[5]  Raymond A. Greenwald,et al.  HF radar signatures of the cusp and low-latitude boundary layer , 1995 .

[6]  Gang Chen,et al.  Ionospheric Doppler and echo phase measured by the Wuhan Ionospheric Oblique Backscattering Sounding System , 2007 .

[7]  Michael Pezzopane,et al.  Automatic scaling of critical frequency foF2 and MUF(3000)F2: A comparison between Autoscala and ARTIST 4.5 on Rome data , 2007 .

[8]  Hong Yuan,et al.  Acquirement and analysis of Doppler ionograms with high accuracy in the ionogram mode from Digisonde 256 , 2004 .

[9]  A. Maio,et al.  CFAR detection of distributed targets in non-Gaussian disturbance , 2002 .

[10]  Bodo W. Reinisch,et al.  New Digisonde for research and monitoring applications , 2009 .

[11]  Steven M. Kay,et al.  Rapid estimation of the range-Doppler scattering function , 2003, IEEE Trans. Signal Process..

[12]  Tricia J. Willink,et al.  Measurements of Doppler and multipath spread on oblique high‐latitude HF paths and their use in characterizing data modem performance , 1998 .

[13]  Bodo W. Reinisch,et al.  Recent advances in real-time analysis of ionograms and ionospheric drift measurements with digisondes , 2005 .

[14]  M. Fox,et al.  Automatic scaling of digital ionograms , 1989 .

[15]  Ammar Bouallègue,et al.  Wavelet-based multifractal analysis of the HF channel scattering function , 2003, IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477).

[16]  Cesidio Bianchi,et al.  The new AIS-INGV digital ionosonde , 2010 .

[17]  Shuzhu Shi,et al.  WIOBSS: The Chinese low-power digital ionosonde for ionospheric backscattering detection , 2009 .