Documents / Official release
This Defense Intelligence Reference Document, DIA-08-1101-001, is dated 15 December 2010. The Defense Intelligence Agency's Defense Warning Office produced it under the Advanced Aerospace Weapons System Applications program. It asks how many unmanned spacecraft one pilot could control in a future deep-space fleet, drawing on air traffic control and multiple unmanned vehicle research. It concludes the limits are about 16 craft for simple tasks, 7 for moderately complex ones and 4 for complex heterogeneous craft. It adds that physiological measures can signal operator overload.
From the source: Release of 2026-09-18 Incident: 12/15/10, Las Vegas, Nevada. Released with redactions. This document is a Defense Intelligence Reference Document (DIRD), a technical reference format used by the Defense Intelligence Agency (DIA) to capture baseline knowledge on a specific topic for later analytic use. DIRDs are best understood as reference and synthesis products rather than as original research. It is one of 38 DIRDs produced under the Advanced Aerospace Weapon System Applications Program (AAWSAP) between 2009 and 2011. Because AAWSAP’s scope permitted a broad range of supporting topics, not every DIRD in the series directly concerns aerospace systems or future threat assessment. The following summary reflects the DIRD’s scope and framing at the time of writing and should not be read as implying current validation of the concepts discussed. This DIRD examines how many unmanned spacecraft a single human operator could realistically supervise or control at once, using research from air traffic control and multi-vehicle remote piloting as rough analogs. The report argues that the practical limit depends heavily on task complexity: about 16 craft for simple monitoring or destination assignment, about 7 for moderately complex piloting or mission tasks, and about 4 for complex heterogeneous operations. It places particular emphasis on the operator’s ability to maintain a coherent mental “big picture” of multiple vehicles at once, and it suggests that automation and external displays can help by offloading working-memory demands, though not eliminating them. The document also highlights physiological workload measures as a possible way to detect or predict operator overload in real time. Overall, it presents multi-spacecraft control as a human-factors and systems-integration problem in which progress depends on managing cognitive limits through interface design, automation, and workload monitoring.
UNCLASSIFIED/ /FOR QFFl&IAL l:ISI!!! Brit I high frequency components which have different noise contributions (for example, core temperatu re changes, blood pressure or speech, and respiration, respectively) .10 Blood pressure and its variability can also be measured. For continuous monitoring, a finger cuff filled with water match the inner-arterial pressure and can be used to monitor variability .11 CNS Measurements Measurement of brain activity can be unobtrusively recorded using low -cou nt electroencephalography (EEG),e or the minimally obtrusive techniques of EEG, near infrared spectrometry (NIRS), trans-cranial Doppler sonography (TCDS), or the non invasive laboratory techniques of functional MRI (fMRI), magnetoencephalography (MEG), or positron emission tomography (PET). The latter three techniques are for brain research only and do not have any current naturalistic research studies (although see Genik12 for a prognosis on generation-after-next technologies including NIRS, PET, fMRI, and MEG). EEG measurements are typically divided into spectra and the relative power in the bands 0-4 Hz(!\), 4-8 Hz (0), 8-13 Hz (a ), 13-30 Hz(~), and 30-100 Hz (y). NIRS measures the BOLD effectt and is related to localized y activity . TCDS measures CO2 as the byproduct of localized increased metabolism and is also an indirect measure of neural activity which has been shown to be related to vigilance. 13 For EEG experiments in mental workload, changes are typically reported in the 0 and a bands, though more recently ~ and y bands have shown sensitivity .14 Event-related potentials (ERP) are peaks of activity measured at the skin indicative of several tens of thousands of neurons firing coherently for a short time. For example, a well-studied cognitive ERP is P300, a lO's-of-msec-wide bump in the EEG signal occurring 200-400 msec after an event. Some success in utilizing a task-irrelevant secondary aud io stimulation and NlOO has been shown, 15 but little further development to this approach has been found in the last 15 years. Ocular Measurements Measurements involving eye fixations, dwell t ime (temporal length of a fixation), and pupillary changes are well established metrics of workload in visual searching tasks. 16 Add itiona l measures of ocular changes include bl ink rate, blink duration, bl ink latency, and eye movement. These are recorded using one of various types of eye-tracking (ET) or electrodes to measure an electrooculogram (EOG). ET data will include position of a fixation and the time of each eye movement (or saccade), whereas an EOG on ly identifies the time that the muscle controlling eye blinks or eye position activated. • Low-count EEG is generally less than 10 electrodes, and usually 3 or 5. r The Blood Oxygen Level Dependent (BOLD) effect is a local change in the oxygen saturation ratio near neural activity due to metabolic and vascu lar action . This change is detectlble in the infrared spectra . UNCLASSIFIED/ j FOR OPPICI.AL l:ISlii &PU,¥ 6
Not linked to a story yet.
Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 31 pages are in the text index: search them above, or from the library's search.