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On Universal Distributed Estimation of Noisy Fields with One-bit Sensors

机译:用一位传感器对噪声场进行通用分布估计

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This paper formulates and studies a general distributed field reconstruction problem using a dense network of noisy one-bit randomized scalar quantizers in the presence of additive observation noise of unknown distribution. A constructive quantization, coding, and field reconstruction scheme is developed and an upper-bound to the associated mean squared error (MSE) at any point and any snapshot is derived in terms of the local spatio-temporal smoothness properties of the underlying field. It is shown that when the noise, sensor placement pattern, and the sensor schedule satisfy certain minimal technical requirements, it is possible to drive the MSE to zero with increasing sensor density at points of field continuity while ensuring that the per-sensor bitrate and sensing-related network overhead rate simultaneously go to zero. The proposed scheme achieves the order-optimal MSE versus sensor density scaling behavior for the class of spatially constant spatio-temporal fields.
机译:本文在存在未知分布的添加观察噪声的情况下,使用嘈杂的一体随机标量化器的密集网络制定和研究一般分布式的现场重建问题。开发了建设性量化,编码和现场重建方案,并且在任何点处的相关均方误差(MSE)和任何快照的上限于基础场的局部时空平滑性。结果表明,当噪声,传感器放置图案和传感器调度满足某些最小的技术要求时,可以通过在现场连续性点处的传感器密度增加传感器密度,同时确保按照每个传感器比特率和感测,可以将MSE驱动到零。 - 相似的网络开销率同时转到零。该方案实现了空间恒定的时空字段类的顺序最优MSE与传感器密度缩放行为。

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