System and method for cutting table length adaptation

An agricultural harvester comprising:

• a cutting table configured to adjust a cutting table length of a cutting unit, the cutting unit configured as a harvesting header for cutting and receiving harvested material;
• a reel of the cutting unit, the reel configured to be adjusted to a reel vertical position and reel longitudinal position;
• an inclined conveyor downstream from the cutting unit and upstream from a threshing system of the agricultural harvester;
• and
• a driver assistance system comprising at least a processor and a memory, the driver assistance system configured to:
• separate frequency components of a material flow signal into a constant component and a vibration component, the vibration component including higher frequencies than the constant component;
• determine harvested material throughput based on the constant component;
• determine a vibration coefficient based on the vibration component, wherein the vibration coefficient is indicative of fluctuation in the harvested material throughput in a region lying in front of the threshing system;
• and
• cause modifying of the cutting table length based on the vibration coefficient.