PPI meaning in Space Science ?

Answer: What is Plan Position Indicator mean?

A plan position indicator (PPI) is a type of radar display that represents the radar antenna in the center of the display, with the distance from it and height above ground drawn as concentric circles. As the radar antenna rotates, a radial trace on the PPI sweeps in unison with it about the center point. It is the most common type of radar display.

reference

Full Form	Category
Port Pirie	Airport Code
Pre-Paid Instruments	Business
Passive Plus Inc	Business
Pressure Products Industries	Business
Process Performance Indicator	Business
Payment Protection Insurance	Business
Precision Preparation Inc	Business
Production People Inc	Business
Payment Processing Inc	Business
Premiere Products Inc	Business
Primate Programming Inc	Business
Perceptive Pixel Inc	Business
Professional Publications Inc	Business
Precision Power Instruments	Business
Platinum Plans Insurance	Business
Postage Paid Impression	Business
Prime Project International	Business
Pay Per Install	Business
Pakistan Press International	Community
Project Proposed by the Investor	Community
Pedagogical Psychological Information	Community
Pre Primary Impairments	Community
Participant Perception Indicator	Community
Positive Peer Influence	Community
PCS to PCS Interference	Computer and Networking
Parallel Peripheral Interface	Computer Hardware
Pixel Per Inch	Computing
Programmable Peripheral Interface	Computing
Parallel Processing Interface	Computing
Past Performance Information	Computing
Pay Per Incident	Computing
Precise Pixel Interpolation	Computing
Peripheral Parallel Interface	Computing
Pulse Per Inch	Computing
Peak Program Indicator	Computing
Program to Program Interface	Computing
Programme Potentiellement Indesirable	Computing
Protected Personal Information	Computing
Poverty Probability Index	General
Proactive Preservation Initiative	General
Perserikatan Persuratkabaran Indonesia	General
Premier Performance Interiors	General
Positive Performance Indicators	General
Private Personal Information	General
Passive Proximity Immobilizer	General
Private Participation in Infrastructure	General
Plastics Pipe Institute	General
Pacific Printing Industries	General
Project Performance International	General
Planetary Plasma Interactions	General
Personal Potential Index	General
Pulp and Paper International	General
Polymerase Preference Index	General
Progressive Policy	General
Printed Postage Impression (mail)	General
Pay Per Impression	General
Producer Price Indexes	General
Partner Program Intelligence	General
Progress and Performance Index	General
Permanent Partial Impairment	General
Picks per inch	General
Personal and Public Involvement	General
Premiums Promotions and Imports	General
Producer Pacification Indicator	General
Pixles Per Inch	General
Pack Post Insurance	General
Philosophy in the Public Interest	General
Position Plan Indicator	General
Professional Photographers of Iowa	General
Pulp and Paper Industry	General
Performance Polymers Innovations	General
Pre Pleading Investigation	Governmental
Planned Product Improvement	Governmental
Public Policy Institute	Governmental
Program Planning and Integration	Governmental
Progressive Policy Institute	Governmental
Premium Pension Institution	Governmental
Past President Immediate	Governmental
Patient Package Insert	Governmental
Pittsburgh Pastoral Institute	Governmental
Producer Price Index	Healthcare
PIPARIYA	Indian Railway Station
Pixels Per Inch	Information Technology
Pulp Paper International	International
Pirate Parties International	International
Personal Priesthood Interview	Jobs
Pay Per Inclusion	Jobs
Paranormal Private Investigator	Jobs
Points Per Inch	Measurement Unit
Particles Per Inch	Measurement Unit
Pages Per Inch	Measurement Unit
Parts Per Inch	Measurement Unit
Proton Pump Inhibitor	Medical
Patient's Perspective of Illness	Medical
Paired Pulse Inhibition	Medical
Partial Permanent Impairment	Medical
Partnerhip for Policy Implementation	Medical
Peptidyl Prolyl Isomerase	Medical
phosphoinositide	Medical
Portal Perfusion Index	Medical
postpartum interval	Medical
preproinsulin	Medical
Protein-Protein Interaction	Medical
Purified Porcine Insulin	Medical
psychophysiological interaction	Medical
Protein-Pump Inhibitor	Medical
Pennsylvania Psychiatric Institute	Medical
Proton Pump Inhibitors	Medical
Prepulse Inhibition	Medical
Psychopathic Personality Inventory	Medical
Patient Public Involvement	Medical
Patient and Public Involvement	Medical
Pea Protein Isolate	Medical
Proton Pump Inhibitior	Medical
Point-point-interface	Networking
Pre-purchase Inspection	Real Estate
Pretty Poor Interface	Softwares
Parse::perl::isolated	Softwares
Prince of Persia Interface	Softwares
Plan Position Indicator	Space Science
Pulse Position Indicator	Space Science
Precision Performance Individuality	Sports