SourcesSought_57IS_Prof_Questionnaire.docx

57 IS Sources Sought Proficiency Questionnaire

Instructions: In a separate softcopy document, clearly indicate the BEST answer to the multiple choice questions below. In the same softcopy document, answer the short answer questions below. Questions 1-10 refer to standards, practices, and methodologies present in the modernized EWIRDB using the Standard EWIR Reference Format (SERF), incorporating standards, practices, and guidelines set by the EWIR Program Manager, Executive Agent, and Standardization Committee. Questions 11-14 are unique to the US Electromagnetic Systems (USELMS) Database, while questions 15-17 apply to the Combat Support Database (CSDB). All responses must be UNCLASSIFIED.

Multiple Choice Questions:

1) What SERF model do you use to add polarization major axis tilt data for a radar system?

a. Radar

b. Antenna

c. Platform

d. Generic System

2) When assessing rise and fall times, if pulse duration is the only available piece of intelligence, (i.e. high fidelity rise and fall time measurements or assessments are not available) what should be entered in the EWIRDB radar models for Rise Time and Fall Time?

a. Nothing – low confidence (CFA >3) Rise Time and Fall Time assessments are not desirable

b. 10% and 20% of the measured pulse duration, respectively

c. 5% and 10% of the measured pulse duration, respectively

d. None of the above

3) A partial interrupt is one that replaces a portion of the waveform’s fully enumerated parametric set (FEPS) according to the interrupt type. Which partial interrupt should never be used?

a. Insert: Partial FEPS

b. Replacement: Partial FEPS

c. Spawn: Partial FEPS

d. Partial Interrupts are not defined and therefore should not be used in any case.

4) Which line of code would be used to return a value when modeling a random RF with an algorithm?

a. return{‘RF:Random’:rfValue}

b. return{‘RF:Carrier’:rfValue}

c. return{‘RF:Intrapulse’:rfValue}

d. return{‘RF:currentRF’:rfValue}

5) Which logic flow control entity is used in Transition Logic Map (TLM) construction when the current path must finish prior to the change occurring?

a. Asynchronous Interrupt

b. Stateflow Junction

c. DecisionPoint

d. Switch

6) In a TLM, if a sequence does not contain a temporal entity, how is the container’s time set?

a. Timing defaults to 1 µsec

b. The longest PD in the model is the default time

c. The sequence will inherit the parent container’s time

d. An error will occur. Each sequence must contain at least one temporal entity

7) In EWIRDB, sidelobes are ranked by , not relative to the mainlobe.

a. position; strength

b. strength; position

c. cross polarization; strength

d. None of the above

8) Which of the following is not a Modal Summary in EWIRDB?

a. Modal Summary-Scan

b. Modal Summary-Pulse

c. Modal Summary-PRI

d. Modal Summary-RF

9) The EWIRDB plugin shown in Fig. 1 is known as:

a. TOPAZ

b. STRIKEFORCE+

c. JADE

d. GARNET

Figure 1 (Question 9)

10) The TLM shown in Fig. 2 models what radar behavior?

a. The RF is switched randomly once every PRI dwell (either 128 or 256 pulses) (dwell-to- dwell RF agility)

b. The RF is switched randomly once every pulse (pulse-to-pulse RF agility)

c. The RF is switched randomly once every PRI group (896 pulses) (group-to-group RF agility)

d. The RF is switched depending on operator input (deterministic RF switching)

Figure 2 (Question 10)

11) A nominal RF of 9 GHz for Radar X is present in all of the following source references below. Which source should the analyst cite in order to have the highest CFA?

a. DoD Tech Order

b. Manufacturer’s Brochure

c. CED Database

d. Any of the above

12) Who has final authority to release a USELMS system to Foreign Partners?

a. President of USA

b. Unit Security Officer

c. Service FDO

d. EWIRDB PM

e. N/A since software automatically roles up and displays file releasability

13) A USELMS SERF file marked “S//REL TO USA, FVEY” in EWIRDB is approved to share with Australian personnel which possess appropriate level clearance and need to know?

a. True

b. False

14) Which of the following USELMS system technologies are included in EWIRDB?

A – Radar B – Communications C – Electronic Countermeasures D – Electro-optical / Infrared E – Platforms F – Radar Warning Receivers

a. A, C, and E

b. A, B, and D

c. A and D

d. A, C, D, and E

e. All of the above

15) Max Detection Range is given from a high confidence source with the following conditions: 1 m2 sized target, 90% probability of detection, and Swerling case 1. Which of the following should the analyst do given the file was previously reviewed at Completeness 1?

a. Use the given MDR and mark as CFA-1

b. Use the given MDR and degrade the CFA

c. Convert the given MDR to the database standard and degrade the CFA

d. Calculate MDR based on other known or given criteria

16) Which of the following best describes the primary goal(s) of the Combat Support Database?

a. Accurate identification of friend or foe

b. Defense conservative estimates of max adversary lethality

c. Machine-to-machine transfer of Blue EW parametric data for RWR reprogramming

d. Both A and C

e. All of the above

17) Which of the following technologies are within the scope of the Combat Support Database?

a. Anti-aircraft artillery

b. Radar

c. Surface to air missiles

d. Both B and C

e. All of the above

Short Answer Questions:

18) What is required for modeling and simulating an aircraft’s Radar Cross Section (RCS)?

19) Briefly describe how an aircraft IR signature is used in engagement models and hardware-in-the-loop simulations.

20) What is required for modeling and simulating an aircraft’s InfraRed (IR) signature?

21) Briefly describe your knowledge of and involvement with the Opana program. How do you envision the Opana toolset benefiting the EWIRDB program? How do you envision the Opana toolset benefiting the USELMS program?

22) A successful EWIRDB analyst must often make assessments based on insufficient information. You have been asked to create an EWIRDB Radar model using the SERF format for the radar pictured in Figure 3 below. The only reference available is the picture in Figure 3. Based solely on Figure 3, describe with as much detail as you can how you would assess the following key EWIRDB characteristics, and (in general, UNCLASSIFIED terms) what the characteristics are (for example, “probably operates in IEEE L-Band because…”). Answers will be evaluated on the respondents’ ability to display critical thinking, and to thoroughly explain any assessments.

a. Primary Function/Probable Employment

b. Primary Waveform Type

c. Radio Frequency (RF)

d. Power

e. Pulse Type/Pulse Duration/Pulse Modulation (if applicable)

f. Pulse Repetition Interval (PRI) (if applicable)

g. Polarization

h. Scan

i. Beam Shape/Antenna Pattern

j. Transmission line loss

Figure 3 (Question 22) image5.jpeg image1.jpeg image2.jpeg image3.jpeg image4.jpeg