RF Cascade Workbook

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1996 -
2016

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- Alternate Two-Way Radar Equation -

**ALTERNATE TWO-WAY RADAR EQUATION**

In this section the same radar equation factors are grouped differently to create different constants as is used by some authors.

In the last section, we had the basic radar equation given as equation [6] and it is repeated as equation [1] in the table below.

In section 4-4, in order to maintain the concept and use of the one-way space loss coefficient, α

Some authors take a different approach, and instead develop an entirely new single factor α

If equation [1] is reduced to log form, (and noting that f = c/λ) it becomes:

10log P

We now call the last three terms on the right minus α

Equation [2] reduces to: 10log Pr = 10log Pt + 10log Gt + 10log Gr - "2 (in dB) [3]

Where α

and K3 = -10log (c

The values of K

Comparing equation [3] to equation [10] in Section 4-4, it can be seen that α

**Table of Contents for Electronics Warfare and Radar Engineering Handbook**

Introduction |
Abbreviations | Decibel | Duty
Cycle | Doppler Shift | Radar Horizon / Line
of Sight | Propagation Time / Resolution | Modulation
| Transforms / Wavelets | Antenna Introduction
/ Basics | Polarization | Radiation Patterns |
Frequency / Phase Effects of Antennas |
Antenna Near Field | Radiation Hazards |
Power Density | One-Way Radar Equation / RF Propagation
| Two-Way Radar Equation (Monostatic) |
Alternate Two-Way Radar Equation |
Two-Way Radar Equation (Bistatic) |
Jamming to Signal (J/S) Ratio - Constant Power [Saturated] Jamming
| Support Jamming | Radar Cross Section (RCS) |
Emission Control (EMCON) | RF Atmospheric
Absorption / Ducting | Receiver Sensitivity / Noise |
Receiver Types and Characteristics |
General Radar Display Types |
IFF - Identification - Friend or Foe | Receiver
Tests | Signal Sorting Methods and Direction Finding |
Voltage Standing Wave Ratio (VSWR) / Reflection Coefficient / Return
Loss / Mismatch Loss | Microwave Coaxial Connectors |
Power Dividers/Combiner and Directional Couplers |
Attenuators / Filters / DC Blocks |
Terminations / Dummy Loads | Circulators
and Diplexers | Mixers and Frequency Discriminators |
Detectors | Microwave Measurements |
Microwave Waveguides and Coaxial Cable |
Electro-Optics | Laser Safety |
Mach Number and Airspeed vs. Altitude Mach Number |
EMP/ Aircraft Dimensions | Data Busses | RS-232 Interface
| RS-422 Balanced Voltage Interface | RS-485 Interface |
IEEE-488 Interface Bus (HP-IB/GP-IB) | MIL-STD-1553 &
1773 Data Bus |

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