the ocean is very big, and radar was only an experimental technology, and the attach was very unexpected no one knew it will come so fast and that it will damage so many navy ships.
Radio Detection And Ranging
Synchronous detection, also known as coherent detection, involves multiplying the incoming signal with a reference signal that is phase-aligned, allowing for accurate recovery of the signal even in the presence of noise. Envelop detection, on the other hand, is a simpler method primarily used for amplitude modulation (AM) signals, where the envelope of the modulated signal is extracted to retrieve the original message. While synchronous detection is more complex and effective in various conditions, envelope detection is easier to implement and is often used in applications where precise phase information is not critical.
The defects detection is the validation process. The defects prevention is a verification process.
radio detection and ranging
The housing used for a detection antenna is called a radome. This type of housing is made from transparent material, which is often found on the outer surface of an aircraft.
They would turn themselves into cats in order to avoid detection.
They would turn themselves into cats in order to avoid detection.
The Japanese employed various strategies to avoid detection during World War II, including the use of camouflage, deception tactics, and misinformation. They utilized natural terrain to conceal troop movements and established false communication networks to mislead enemy intelligence. Additionally, they often conducted operations under the cover of night or inclement weather to minimize visibility. These methods helped them maintain tactical advantages and execute surprise attacks.
it hid under a wheelbarrow
The superhero used a pseudonym to avoid detection.
Polymorphic
polymorphic virus
The murderer contrived to construct an alibi to avoid detection.
Japanese bombers flew at low level over sea to avoid detection when approaching Pearl Harbor for attack. They flew through mountainous passes as well to achieve surprise. Before attacking the harbor they flew through 'Kolekole pass'.
By using virus detection program or by not downloading or opening the attachment.
Spyhunter is equipped with 'Rootkit detection technology'. This allows the software to find malware that was sophisticatedly disguised to avoid detection by regular anti-viral programs.
The Frank family tried to avoid detection by hiding in a secret annex located behind a bookcase in Otto Frank's former workplace. They were assisted by trusted friends and employees who provided them with food, supplies, and information about the outside world. They also minimized noise and movement during the day to avoid detection by the workers in the building.