基于Goertzel滤波器组的信道化器实现，用于低温传感器的读出
An Implementation of a Channelizer based on a Goertzel Filter Bank for the Read-Out of Cryogenic Sensors
AI总结：
本文提出基于Goertzel滤波器组的信道化器，用于低温传感器频域复用读出，在FPGA上资源高效实现，支持大规模传感器读取，适用于CMB巡天、中微子探测和量子计算。
摘要：
在这项工作中，我们展示了Goertzel滤波器在多音信号信道化中的应用，这种信号通常用于通过微波超导量子干涉器件复用器（$\mu$MUX）在频域复用（FDM）的低温传感器的读出。我们演示了如何实现一组这样的滤波器，以对多音输入信号进行信道化，从而提取传感器添加的数据。我们展示了这种方法如何在最先进的现场可编程门阵列（FPGA）中以资源高效的方式实现，这为读取数千个传感器提供了极大的可扩展性；正如宇宙微波背景辐射（CMB）巡天中使用低温辐射热计的射电望远镜、使用低温量热计进行中微子质量估计的粒子探测或量子计算所要求的那样。
英文摘要：
In this work we present an application of the Goertzel Filter for the channelization of multi-tonal signals, typically used for the read-out of cryogenic sensors which are multiplexed in the frequency domain (FDM), by means of Microwave Superconducting Quantum Interference Device (SQUID) Multiplexer ($μ$MUX). We demonstrate how implementing a bank of many of these filters, can be used to perform a channelization of the multi-tonal input signal to retrieve the data added by the sensors. We show how this approach can be implemented in a resource-efficient manner in a Field Programmable Gate Array (FPGA) within the state-of-the-art, which allows great scalability for reading thousands of sensors; as is required by Radio Telescopes in Cosmic Microwave Background Radiation (CMB) surveys using cryogenic bolometers, particles detection like Neutrino mass estimation using cryogenic calorimeters or Quantum Computing.
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