The Electronic Battleship

One observation that has clearly come out of the Ukraine-Russia war is the prominent role of electronic warfare (EW).  We’ve seen GPS disruptions, weapon guidance disruption, intercepted communications, unit localization using signals intercepts, and probably many other aspects that are not yet common knowledge.  So, while the exact manifestations of EW’s prominence are not yet fully clear, the overall thrust is.  EW is a major factor/force on the battlefield and its influence is likely to continue to grow.
 
This is a naval blog so what does the EW lesson mean for naval forces?  Obviously, all the same considerations apply to the maritime battlefield as the land battlefield.  Enemy forces and weapons detection, weapons guidance disruption, localization using signal intercepts, etc. are all vitally important for naval forces.
 
Naval forces (and for the rest of this post we’ll focus on US Navy forces unless otherwise explicitly stated) have had EW capabilities to varying degrees for many decades now so what’s the big deal?  The ‘deal’ is that naval EW has long been the forgotten stepchild of naval capabilities (along with armor, large caliber guns, survivability, robust steel construction, weapon density … boy, the Navy sure has a lot of forgotten stepchildren, don’t they?!).  EW has been an afterthought, at best.  It is only recently that the Navy has begun to belatedly, and even then only in a minor way, address EW with the SEWIP modernization program.
 
Currently, each ship has its own small SLQ-32/SEWIP EW unit and the units are constrained by space/volume/mounting requirements, power limitations, placement challenges, manning constraints, training deficiencies, etc.  In other words, each individual ship can, at best, take care of itself but is of little or no help to other ships in the area.
 
If EW is so important, doesn’t it make sense to have a ship that is a behemoth at electronic warfare?  An electronic battleship, so to speak?  Where is our EW ship that can electronically dominate the naval battlefield?  Where is the ship that can electronically ‘swat’ UAVs and missiles from the sky?  Where is our area EW as opposed to individual EW?  We wouldn’t dream of not having area air defenses so why don’t we have area EW?
 
Where is the EW battleship?
 
What’s wrong with individual ship EW, you may ask?  Nothing except that, by definition, it’s limited to just the host ship and it’s haphazardly implemented and suffers from being at the bottom of the ship’s training priorities because it’s not the main mission of the given ship.  This is the same problem the Burkes face with ASW.  They are theoretically capable of ASW but they rarely train for it and are, therefore, ineffective.  Anti-air is the Burke’s main mission so that’s what they train for on the rare occasions that they train for anything.
 
Consider this historical example:  the USS Stark incident was instructive as it illustrated problems with the SLQ-32 performance, interface, false alarms, and lack of training, as noted below. 

The electronic warfare technician at the SLQ-32 console heard the F-1’s Cyrano-IV again lock on to the Stark. The lock-on signal ceased after seven to ten seconds.
 
Neither of the two SLQ-32 operators saw a [ed. inbound] missile warning. The main operator at the console, however, had turned off the incoming missile audible signal warning. He claimed later that the alarm was typically set off too easily, and distracted him from performing other signal analysis.[1]

 
We need a ship whose main – indeed, only – mission is EW so that it gets the training that is required to achieve and maintain proficiency.  We need an electronic battleship.
 
More than that, we need a multi-ship, coordinated EW effort.  Currently, each ship is its own EW entity, separate and isolated from any other ship.  There is no integrated, multi-ship or group EW effort as there is with missile control and usage via Cooperative Engagement Capability (CEC) and Naval Integrated Fire Control-Counter Air (NIFC-CA).  Navy air defense utilizes a central command and control function typically located aboard the Ticonderoga class cruisers.  Again, we need a group wide, area EW control that integrates the EW of all the ships in the group.  We need an EW CEC.
 
Further, we need the group’s chaff and decoy systems tied into the EW control system.
 
Having established the need for an EW battleship and the general concept of large scale, area EW let’s now look at the specifics of an EW battleship.
 
 
EW Battleship
 
Analogous to a conventional battleship, the three main categories and levels of ‘weapons’ for an EW battleship are:
 

• Main battery - electronic attack
• Secondary battery - electronic protection
• Tertiary battery - electronic support

 
More specifically, the EW battleship requirements are, in no particular order:
 

• radar warning
• targeting support
• countermeasures
• situational awareness
• threat warning
• signal collection / SigInt
• direction finding
• laser warning
• drone/missile communications jamming
• false signal injection
• enemy GPS (GLONASS, BeiDou) disruption at point of attack

 
With the specific requirements in mind, what kind of specific equipment (EW ‘weapons’) should an EW battleship have?  An examination of the myriad existing aircraft, vehicle, and ship EW systems provides a good candidate list while understanding that each system would be significantly scaled up in terms of power and antenna size (both sensing and emitting).  For example, a small EW pod on an aircraft might be functionally duplicated for use on a EW battleship but would have, for practical purposes, unlimited power and emitters/receivers many times larger.
 
To give a feel for the types of equipment, here’s a partial list of existing EW equipment on various platforms:
 
 
Ship:
 

• AN/SLQ-32(V)2 – Initially the most common variant, the (V)2 expanded on the (V)1's capabilities with new receiving antennas for increased radio frequency coverage. It added the ability to detect high frequency targeting and fire-control radars, providing early warning against an imminent anti-ship missile attack.
• AN/SLQ-32(V)3 – The (V)3 added antennas with electronic attack capability, able to actively jam targeting radars and anti-ship missile terminal guidance radars.
• Sidekick – active jamming in a smaller package as an alternative to (V)3
• AN/SLQ-32(V)6 – Part of the Surface Electronic Warfare Improvement Program (SEWIP). (V)6 provides enhanced electronic support capability through upgraded antennas and open combat system interface. It is made up of the SEWIP Block 1B2, SEWIP Block 1B3, and SEWIP Block 2, which provide specific emitter identification (SEI), high gain high sensitivity (HGHS), and electronic support (ES), respectively.
• SEWIP Block 1 provides enhanced EW capabilities to existing and new ship combat systems to improve anti-ship missile defense, counter targeting and counter surveillance capabilities. The upgrade addresses obsolescence mitigation through introduction of electronic surveillance enhancements (ESE) and Improved Control and Display (ICAD) as well as incorporation of adjunct receivers for special signal intercept including specific emitter ID (SEI) and high gain/high sensitivity (HGHS). The SEI and HGHS capability provides improved battlefield situational awareness.
• SEWIP Block 2 provides early detection, analysis, and threat warning from anti-ship missiles by providing enhanced Electronic Support (ES) capability via an upgraded ES antenna, ES receiver and an open combat system interface for the AN/SLQ-32. These upgrades are necessary in order to pace the threat and improve detection and accuracy capabilities of the AN/SLQ-32.
• SEWIP Block 3 (AN/SLQ-32(V)7) will provide electronic attack (EA) capability improvements.
• SEWIP Block 4 is a future planned upgrade that will provide advanced electro-optic and infrared capabilities to the AN/SLQ-32(V) system.
• COBLU Command and Control Coordination - Integrates area ship sensors and provides a common picture using passive sensors.

 
 
Aircraft:
 

• EA-18G Growler: ALQ-218 Detection Pod  -  passive Radar warning receiver for airborne situational awareness and signal intelligence gathering. The AN/ALQ-218 detects, identifies, locates and analyzes sources of radio frequency emission.
• EA-18G Growler: ALQ-99 High Band Jamming Pods  -  radar and comms jamming
• EA-18G Growler: ALQ-99 Low Band Jamming Pod  -  radar and comms jamming
• EC-130H / EC-37B Compass Call – electronic attack;  disrupts enemy command and control communications and secondary EA capability against early warning and acquisition radars.
• MQ-1C Gray Eagle UAV - Multifunctional Electronic Warfare (MFEW) Air Large is the Army’s first organic brigade electronic attack asset mounted on an MQ-1C Gray Eagle drone.  brigade-level airborne electronic attack asset and providing limited cyberattack capabilities
• RC-135V/W is the USAF's standard airborne SIGINT platform.
• RC-135S Cobra Ball is a measurement and signature intelligence (MASINT) collector equipped with special electro-optical instruments such an All Weather Tracking Radar and Medium Wave Infrared Array (MIRA) designed to observe ballistic missile flights at long range.[24] The Cobra Ball monitors missile-associated signals and tracks missiles during boost and re-entry phases to provide reconnaissance for treaty verification and theater ballistic missile proliferation.

 
Vehicles:
 

• Stryker - Tactical Electronic Warfare System (TEWS) which combines cyberwarfare, signals intelligence and electronic attack.

 

The EW battleship combines all these functions, each in its own 'mount', on one ship.

Antenna Size
 
The key concept that makes the EW battleship work is the available size and power of the various emitter and receiver antennae. 
 
For example, passive sensing is a function of sensor size.  Inter-galactic frequency sensors are massive in order to collect the faint signals from distant stars and galaxies.  A man-portable - or even an aircraft mounted – sensor is limited in size.  A ship, on the other hand, could mount Aegis sized sensor arrays, thereby vastly increasing the sensitivity and effectiveness of the sensor.
 
Similarly, one of the problems with Army man-portable or even mobile electronic warfare (EW) systems is that they are small and inherently power-limited.  Ship size systems with, for practical purposes, unlimited power would eliminate this constraint.
 
 
Dispersion and Redundancy
 
One of the [many] limitations of small EW package systems is that each package must execute several different functions, switching between them as needed.  On a ship, each function can be its own ‘mount’ and, therefore, be continuously available with no need to switch or ‘ration’ power.  The functions can be dispersed as stand alone, complete units.
 
Ships also offer the ability to have more than one of any given function, just as a ship has (or used to have when we still designed WARships) redundant guns.  This allows for both damage resilience and the ability to engage multiple threats simultaneously.
 
 
 
Note:  I’ve not specified any size for this EW battleship.  The term ‘battleship’ refers to combat power, not size.  If everything needed can fit on a canoe, that’s great.  If it requires a ship the size of an Iowa class battleship, so be it.  My pure guess is that something the size of Burke would suffice but I’ll leave it to the engineers to determine that.
 
 
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[1]https://www.usni.org/magazines/proceedings/1988/may/stark-report