A mode analysis system (913, 1005), comprising: a processor; and a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for: receiving mode sensor data from one or more mode sensors, the mode sensor data indicating movement of structural elements of a rotorcraft associated with the one or more mode sensors; decomposing the mode sensor data into decomposed mode data associated with fundamental modes of the structural elements, wherein each of the fundamental modes is a first order mode that is a constituent part of the mode sensor data; and providing, to a flight control computer disposed on the rotorcraft and connected to one or more actuators, first data associated with the decomposed mode data, wherein the FCC provides a control signal to one or more actuators according to an association between the decomposed mode data and one or more rotorcraft parameters associated with the one or more actuators; the system is characterized in that the instructions for decomposing the mode sensor data into decomposed mode data include instructions for: transforming the mode sensor data from a time domain into frequency domain mode sensor data; generating decomposed frequency domain data by performing a frequency domain inverse transformation on the frequency domain mode sensor data; and transforming the decomposed frequency domain data into the decomposed mode data in the time domain. a processor; and a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for: receiving mode sensor data from one or more mode sensors, the mode sensor data indicating movement of structural elements of a rotorcraft associated with the one or more mode sensors; decomposing the mode sensor data into decomposed mode data associated with fundamental modes of the structural elements, wherein each of the fundamental modes is a first order mode that is a constituent part of the mode sensor data; and providing, to a flight control computer disposed on the rotorcraft and connected to one or more actuators, first data associated with the decomposed mode data, wherein the FCC provides a control signal to one or more actuators according to an association between the decomposed mode data and one or more rotorcraft parameters associated with the one or more actuators; receiving mode sensor data from one or more mode sensors, the mode sensor data indicating movement of structural elements of a rotorcraft associated with the one or more mode sensors; decomposing the mode sensor data into decomposed mode data associated with fundamental modes of the structural elements, wherein each of the fundamental modes is a first order mode that is a constituent part of the mode sensor data; and providing, to a flight control computer disposed on the rotorcraft and connected to one or more actuators, first data associated with the decomposed mode data, wherein the FCC provides a control signal to one or more actuators according to an association between the decomposed mode data and one or more rotorcraft parameters associated with the one or more actuators; the system is characterized in that the instructions for decomposing the mode sensor data into decomposed mode data include instructions for: transforming the mode sensor data from a time domain into frequency domain mode sensor data; generating decomposed frequency domain data by performing a frequency domain inverse transformation on the frequency domain mode sensor data; and transforming the decomposed frequency domain data into the decomposed mode data in the time domain. transforming the mode sensor data from a time domain into frequency domain mode sensor data; generating decomposed frequency domain data by performing a frequency domain inverse transformation on the frequency domain mode sensor data; and transforming the decomposed frequency domain data into the decomposed mode data in the time domain.