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Double conversion transponder

Updated: 12/13/2022
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In a double conversion transponder , the signal received from the ground station is converted into IF , then the signal is filtered & amplified . Finally the IF signal is again upconverted to desired frequency and transmitted downwards.

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What is a conversion function?

As the name suggests, a conversion function is a function that converts a value from one type to another. Many such conversions are either implicit or built-in operations, such as when converting from an int to a double. However, when converting between user-defined types, or between a user-defined type and a built-in type, we must write a function to explicitly perform the conversion for us. In object-oriented languages, we rely on conversion constructors and conversion operators to perform these conversions implicitly, but in C we must explicitly call the appropriate conversion functions.


How do you convert integer to objects in c?

There are no objects in C, so you can't. However, in C++ you can convert an integer to an object if the object's class exposes a public conversion constructor that accepts an integer argument. For example: class X { public: X (int); // conversion constructor // ... }; How the conversion is implemented depends on the class designer. In the following example, a user can construct a complex number type from an integer: class complex { private: double r; double i; public: complex (double real, double imaginary): r {real}, i {imaginary} {} complex (int real): r {real}, i {0.0} {} // ... }; Here, the implementation implicitly converts the integer to a double and assigns that value to the real representation and assigns the value 0.00 to the imaginary representation. This class may be used as follows: complex c = 42; // e.g., c.r = 42.0, c.i = 0.0 If a conversion constructor is provided, a corresponding conversion assignment is usually provided as well: class complex { private: double r; double i; public: complex (double real, double imaginary): r {real}, i {imaginary} {} complex (int real): r {real}, i {0.0} {} complex& operator= (int real) { r = real; i = 0.0; } // ... }; This class may be used as follows: complex c {1.1, -3.14}; // ... c = 42; // e.g., c.r = 42.0, c.i = 0.0


What are the functions of Atoi itoa and gcvt in C language?

All these are conversion functions - atoi()-string to integer.itoa()-integer to string.gcvt()-double to string


Is it possible to convert strings in java to double directly?

Not directly. A String is an object, and a double is a primitive data type. To do the conversion you must first convert the String to a Double object (note the capital D in double), then convert that object to a double data type (lowercase d in double). Double is an object, double is a primitive data type. Here's a class that will convert a String to a double:public class StringToDouble{public static void main (String[] arguments) {String s = "100.00";double d = Double.valueOf(s.trim()).doubleValue();System.out.println("double d = " + d);}}


How do we tuple initialize a class or structure?

Consider the following structure: struct X { int a; double b; // ... }; Here we could initialise with a std::tuple<int, double>. To achieve this we simply define a constructor that accepts the required tuple: #include<tuple> struct X { int a; double b; X::X (std::tuple<int, double>& t): a {std::get<0>(t)}, b {std::get<1>(t)} {} // ... }; Note that any constructor that has one argument is known as a conversion constructor, in this case converting from tuple to X. It is usually a good idea to declare such constructors explicit, particularly if you also provide the complementary conversion operator (from X to tuple). #include<tuple> struct X { int a; double b; explicit X::X (const std::tuple<int, double>& t): a {std::get<0>(t)}, b {std::get<1>(t)} {} operator std::tuple<int, double> (void) const {return std::make_tuple (a, b);} // ... };

Related questions

What is the fullform of DCDA process for manufacturing of sulfuricacid?

Double Conversion Double Absorption


Can you use conversion over typecasting?

Yes. A type cast generally means that an object's representation is re-interpreted, however re-interpretation isn't always suitable so we must use conversion instead. The most common use of type-casting is to re-interpret pointer variables. A pointer variables stores a memory address and its type determines how the object stored at that address is to be interpreted. However a pointer to void has no type, it can refer to an object of any type. But if we want to access that object through the pointer we must first cast the pointer to the appropriate type. This requires no conversion because the memory address stored in the pointer does not change, we're only changing how that address is interpreted. Another use of type casts is when we have a word (multi-byte value) and we wish to access the individual bytes in the word. For this we can simply cast the type to an array of char. Again, this requires no conversion whatsoever because the representation remains the same, only its interpretation changes. When the physical representation must change, we must use a type conversion rather than a type cast. For instance, if we wish to re-interpret a char variable as a word then we must create a new variable to store that new representation. In mixed-mode arithmetic we can use any combination of numeric types (such as int, float and double) but with complex expressions it can often be difficult to see what conversions are actually taking place. For example: void f (int i, float f, double d) { int x = i * f * d; } In the above example, the expression is evaluated as follows: void f (int i, float f, double d) { double t1 = (double) f; // conversion from float to double double t2 = t1 * d; // no conversion double t3 = (double) i; // conversion from int to double double t4 = t3 * t2; // no conversion int x = (int) t4; // conversion from double to int } Had i, f and d been of the same type as x, then the expression x = i * f * d would have resulted in just one temporary variable holding the evaluation of f * d, and no conversions would be necessary. But as soon as we introduce conversions the number of temporary variables increases accordingly. In some cases we may wish to control the conversions rather than rely on automatic conversion which always promotes types to the highest precision type required of the expression. For instance, if we were not interested in the fractional components of the float and double types, we can explicitly cast them: void f (int i, float f, double d) { int x = i * (int) f * (int) d; } In so doing we reduce the number of conversions and temporaries we require: void f (int i, float f, double d) { int t1 = (int) f; // conversion from float to int int t2 = (int) d; // conversion from double to int int t3 = f * d; // no conversion int x = i * t3; // no conversion }


What is a conversion function?

As the name suggests, a conversion function is a function that converts a value from one type to another. Many such conversions are either implicit or built-in operations, such as when converting from an int to a double. However, when converting between user-defined types, or between a user-defined type and a built-in type, we must write a function to explicitly perform the conversion for us. In object-oriented languages, we rely on conversion constructors and conversion operators to perform these conversions implicitly, but in C we must explicitly call the appropriate conversion functions.


What is conversion function?

As the name suggests, a conversion function is a function that converts a value from one type to another. Many such conversions are either implicit or built-in operations, such as when converting from an int to a double. However, when converting between user-defined types, or between a user-defined type and a built-in type, we must write a function to explicitly perform the conversion for us. In object-oriented languages, we rely on conversion constructors and conversion operators to perform these conversions implicitly, but in C we must explicitly call the appropriate conversion functions.


What are symptoms of conversion disorder?

The specific physical symptoms of conversion disorder may include a loss of balance or paralysis of an arm or leg; the inability to swallow or speak; the loss of touch or pain sensation; going blind or deaf; seeing double;.hallucinations, seizures.


How do you convert integer to objects in c?

There are no objects in C, so you can't. However, in C++ you can convert an integer to an object if the object's class exposes a public conversion constructor that accepts an integer argument. For example: class X { public: X (int); // conversion constructor // ... }; How the conversion is implemented depends on the class designer. In the following example, a user can construct a complex number type from an integer: class complex { private: double r; double i; public: complex (double real, double imaginary): r {real}, i {imaginary} {} complex (int real): r {real}, i {0.0} {} // ... }; Here, the implementation implicitly converts the integer to a double and assigns that value to the real representation and assigns the value 0.00 to the imaginary representation. This class may be used as follows: complex c = 42; // e.g., c.r = 42.0, c.i = 0.0 If a conversion constructor is provided, a corresponding conversion assignment is usually provided as well: class complex { private: double r; double i; public: complex (double real, double imaginary): r {real}, i {imaginary} {} complex (int real): r {real}, i {0.0} {} complex& operator= (int real) { r = real; i = 0.0; } // ... }; This class may be used as follows: complex c {1.1, -3.14}; // ... c = 42; // e.g., c.r = 42.0, c.i = 0.0


What are the functions of Atoi itoa and gcvt in C language?

All these are conversion functions - atoi()-string to integer.itoa()-integer to string.gcvt()-double to string


Is there a conversion kit available anywhere to change a Crescent Arms New Empire hammerless double barrel twelve gauge into an external hammer gun?

No.


What is the formula in changing the temperature to Fahrenheit?

To convert from celsius to fahrenheit, you multiply by 9/5 and add 32. A rough conversion is to double and add 30.


how to write a function that takes one argument F for Fahrenheit and returns the result in Celsius c the formula for the conversion is c plus F-3259?

double celsius (double fahrenheit) { return (fahrenheit - 32.) * 5. / 9.; }


What is the decimal conversion of the binary number 1010?

10. From right to left, each digit is double the previous one, like this: 8, 4, 2, 1.


Is it possible to convert strings in java to double directly?

Not directly. A String is an object, and a double is a primitive data type. To do the conversion you must first convert the String to a Double object (note the capital D in double), then convert that object to a double data type (lowercase d in double). Double is an object, double is a primitive data type. Here's a class that will convert a String to a double:public class StringToDouble{public static void main (String[] arguments) {String s = "100.00";double d = Double.valueOf(s.trim()).doubleValue();System.out.println("double d = " + d);}}