Tunable filters for signal integrity in real time diagnostics

A system for real time filtering of signal transmissions in a vehicle, comprising:

• a first vehicle component configured to transmit a high-speed first signal including frequencies on the order of 10 gigahertz and higher;
• a signal sensor configured to detect harmonics in the first signal;
• an active tunable filter configured to filter out the detected harmonics,
• wherein the active tunable filter is adjustable to filter out a selected frequency range, wherein frequencies in the selected frequency range are filtered out of the first signal by the active tunable filter,
• wherein the active tunable filter includes a pulse generator having a duty cycle, and modulating a pulse wave signal to modify the duty cycle of the pulse generator causes modification of the selected frequency range, and
• wherein the active tunable filter is configured to receive the first signal and filter out selected detected harmonics in the selected frequency range and transmit a filtered signal;
• and
• a second vehicle component having an onboard processor is configured to receive the filtered signal, wherein the onboard processor is further configured to monitor the filtered signal in real time and adjust either the active tunable filter or an operating behavior of the first component during operation of the vehicle.

A device for real time filtering of high-speed signal transmissions between components in a vehicle comprising:

• a first component configured to transmit a first high-speed signal, wherein the first a high-speed transmit signal includes frequencies on the order of 10 gigahertz and higher;
• a second component configured to receive the first high-speed signal having an onboard processor;
• a signal sensor electrically coupled between the first component and the second component and configured to detect harmonics in the first signal;
• an active tunable filter electrically coupled between the signal sensor and the second component, the active tunable filter being configured to filter out the detected harmonics,
• wherein the active tunable filter is adjustable to modify a selected frequency range, wherein frequencies in the selected frequency range are filtered out of the first signal by the active tunable filter,
• wherein the active tunable filter includes a pulse generator having a duty cycle, and modulating a pulse wave signal to modify the duty cycle of the pulse generator modifies the selected frequency range, and
• wherein the active tunable filter is configured to receive the first signal to filter out selected detected harmonics in the selected frequency range and transmit a filtered signal to the second component;
• and
• the onboard processor of the second component to being configured to monitor the filtered signal during vehicle operation and detect a frequency drift over time and modify an operating behavior of the first component when the onboard processor detects the frequency drift.