Enhanced-performance BOTDA sensing through optimized pulse coding and low-RIN bidirectional Raman amplification
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An enhanced-performance BOTDA sensor is presented combining low-RIN distributed Raman amplification and RZ Simplex-pulse coding. Results demonstrate for first time 1 m spatial resolution over 120 km distance with 1.3°C/26 μϵ resolutions
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In physics and geosciences, the term spatial resolution refers to distance between independent measurements, or the physical dimension that represents a pixel of the image. While in some instruments, like cameras and telescopes, spatial resolution is directly connected to angular resolution, other instruments, like synthetic aperture radar or a network of weather stations, produce data whose spatial sampling layout is more related to the Earth's surface, such as in remote sensing and .
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