{
  "$type": "site.standard.document",
  "description": "A signal processing device for performing processing for reducing noise in a displacement amount measured on a basis of light reflected from a detection object includes a moving-average calculating unit that performs moving average calculation for an input signal to reduce a noise component…",
  "path": "/patents/1242310",
  "publishedAt": "2019-08-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C3/08",
    "Mitsubishi Electric Corporation"
  ],
  "textContent": "A signal processing device for performing processing for reducing noise in a displacement amount measured on a basis of light reflected from a detection object includes a moving-average calculating unit that performs moving average calculation for an input signal to reduce a noise component included in the input signal and an infinite impulse response filter that reduces a noise component included in an input signal by digital signal processing. A filter coefficient of the infinite impulse response filter is determined on a basis of a difference between a first calculation result output by the moving-average calculating unit and a second calculation result output by the infinite impulse response filter when a same signal is input to the moving-average calculating unit and the infinite impulse response filter.",
  "title": "SIGNAL PROCESSING DEVICE, SENSOR DEVICE, AND SIGNAL PROCESSING METHOD"
}